120021111112 has 32 divisors (see below), whose sum is σ = 257370796800. Its totient is φ = 51401078784.

The previous prime is 120021111097. The next prime is 120021111121. The reversal of 120021111112 is 211111120021.

It is a happy number.

It is a super-2 number, since 2×120021111112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120021111092 and 120021111101.

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, 681648 + ... + 839455.

It is an arithmetic number, because the mean of its divisors is an integer number (8042837400).

Almost surely, 2^120021111112 is an apocalyptic number.

It is an amenable number.

120021111112 is an abundant number, since it is smaller than the sum of its proper divisors (137349685688).

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

120021111112 is a wasteful number, since it uses less digits than its factorization.

120021111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522525 (or 1522521 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120021111112 its reverse (211111120021), we get a palindrome (331132231133).

The spelling of 120021111112 in words is "one hundred twenty billion, twenty-one million, one hundred eleven thousand, one hundred twelve".