120021112100100 has 36 divisors (see below), whose sum is σ = 347261084343824. Its totient is φ = 32005629893280.

The previous prime is 120021112100069. The next prime is 120021112100161. The reversal of 120021112100100 is 1001211120021.

It is a super-3 number, since 3×120021112100100³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 11 ways as a sum of consecutive naturals, for example, 200035186534 + ... + 200035187133.

Almost surely, 2^{120021112100100} is an apocalyptic number.

120021112100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021112100100 is an abundant number, since it is smaller than the sum of its proper divisors (227239972243724).

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

120021112100100 is a wasteful number, since it uses less digits than its factorization.

120021112100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400070373684 (or 400070373677 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120021112100100 its reverse (1001211120021), we get a palindrome (121022323220121).

The spelling of 120021112100100 in words is "one hundred twenty trillion, twenty-one billion, one hundred twelve million, one hundred thousand, one hundred".