120022212100 has 108 divisors (see below), whose sum is σ = 307493142096. Its totient is φ = 40536175680.

The previous prime is 120022212097. The next prime is 120022212131. The reversal of 120022212100 is 1212220021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145507 + ... + 511093.

Almost surely, 2^120022212100 is an apocalyptic number.

120022212100 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 120022212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153746571048).

120022212100 is an abundant number, since it is smaller than the sum of its proper divisors (187470929996).

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

120022212100 is a wasteful number, since it uses less digits than its factorization.

120022212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365682 (or 365668 counting only the distinct ones).

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

Adding to 120022212100 its reverse (1212220021), we get a palindrome (121234432121).

The spelling of 120022212100 in words is "one hundred twenty billion, twenty-two million, two hundred twelve thousand, one hundred".