120222012100 has 72 divisors (see below), whose sum is σ = 263042192000. Its totient is φ = 47691745920.

The previous prime is 120222012083. The next prime is 120222012179. The reversal of 120222012100 is 1210222021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8580901 + ... + 8594899.

Almost surely, 2^120222012100 is an apocalyptic number.

120222012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120222012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131521096000).

120222012100 is an abundant number, since it is smaller than the sum of its proper divisors (142820179900).

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

120222012100 is a wasteful number, since it uses less digits than its factorization.

120222012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14717 (or 14710 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120222012100 its reverse (1210222021), we get a palindrome (121432234121).

The spelling of 120222012100 in words is "one hundred twenty billion, two hundred twenty-two million, twelve thousand, one hundred".