100021111000120 has 32 divisors (see below), whose sum is σ = 230281162539120. Its totient is φ = 39078015459840.

The previous prime is 100021111000093. The next prime is 100021111000201. The reversal of 100021111000120 is 21000111120001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100021111000097 and 100021111000106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29075902641 + ... + 29075906080.

Almost surely, 2^{100021111000120} is an apocalyptic number.

100021111000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021111000120 is an abundant number, since it is smaller than the sum of its proper divisors (130260051539000).

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

100021111000120 is a wasteful number, since it uses less digits than its factorization.

100021111000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58151808775 (or 58151808771 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100021111000120 its reverse (21000111120001), we get a palindrome (121021222120121).

The spelling of 100021111000120 in words is "one hundred trillion, twenty-one billion, one hundred eleven million, one hundred twenty", and thus it is an aban number.