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120221141 = 190163241
BaseRepresentation
bin1110010101001…
…10110111010101
322101012212101212
413022212313111
5221234034031
615532431205
72656601645
oct712466725
9271185355
10120221141
1161952a17
1234318505
131bba3791
1411d76525
15a84b12b
hex72a6dd5

120221141 has 4 divisors (see below), whose sum is σ = 120286284. Its totient is φ = 120156000.

The previous prime is 120221137. The next prime is 120221147. The reversal of 120221141 is 141122021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21298225 + 98922916 = 4615^2 + 9946^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221141 - 22 = 120221137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29720 + ... + 33521.

It is an arithmetic number, because the mean of its divisors is an integer number (30071571).

Almost surely, 2120221141 is an apocalyptic number.

It is an amenable number.

120221141 is a deficient number, since it is larger than the sum of its proper divisors (65143).

120221141 is an equidigital number, since it uses as much as digits as its factorization.

120221141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65142.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 120221141 is about 10964.5401636366. The cubic root of 120221141 is about 493.5452181606.

Adding to 120221141 its reverse (141122021), we get a palindrome (261343162).

The spelling of 120221141 in words is "one hundred twenty million, two hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 1901 63241 120221141