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121233201 = 3371092191
BaseRepresentation
bin1110011100111…
…01111100110001
322110010021200120
413032131330301
5222013430301
620010240453
73001315365
oct716357461
9273107616
10121233201
1162484331
1234726129
131c16932b
141215b2a5
15a99ae36
hex739df31

121233201 has 8 divisors (see below), whose sum is σ = 166013184. Its totient is φ = 78637680.

The previous prime is 121233199. The next prime is 121233221. The reversal of 121233201 is 102332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121233201 - 21 = 121233199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121233221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545985 + ... + 546206.

It is an arithmetic number, because the mean of its divisors is an integer number (20751648).

Almost surely, 2121233201 is an apocalyptic number.

It is an amenable number.

121233201 is a deficient number, since it is larger than the sum of its proper divisors (44779983).

121233201 is a wasteful number, since it uses less digits than its factorization.

121233201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092231.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121233201 is about 11010.5949430537. The cubic root of 121233201 is about 494.9262904224.

Adding to 121233201 its reverse (102332121), we get a palindrome (223565322).

The spelling of 121233201 in words is "one hundred twenty-one million, two hundred thirty-three thousand, two hundred one".

Divisors: 1 3 37 111 1092191 3276573 40411067 121233201