120221420 has 24 divisors (see below), whose sum is σ = 275416848. Its totient is φ = 43716800.

The previous prime is 120221419. The next prime is 120221429. The reversal of 120221420 is 24122021.

It is a junction number, because it is equal to n+sod(n) for n = 120221395 and 120221404.

It is not an unprimeable number, because it can be changed into a prime (120221429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273011 + ... + 273450.

It is an arithmetic number, because the mean of its divisors is an integer number (11475702).

Almost surely, 2^120221420 is an apocalyptic number.

120221420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221420 is an abundant number, since it is smaller than the sum of its proper divisors (155195428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120221420 is a wasteful number, since it uses less digits than its factorization.

120221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546481 (or 546479 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 120221420 is about 10964.5528864610. The cubic root of 120221420 is about 493.5455999543.

Adding to 120221420 its reverse (24122021), we get a palindrome (144343441).

It can be divided in two parts, 1202 and 21420, that added together give a palindrome (22622).

The spelling of 120221420 in words is "one hundred twenty million, two hundred twenty-one thousand, four hundred twenty".