122121112000 has 56 divisors (see below), whose sum is σ = 302432953680. Its totient is φ = 48848441600.

The previous prime is 122121111997. The next prime is 122121112037. The reversal of 122121112000 is 211121221.

It is a super-2 number, since 2×122121112000² (a number of 23 digits) contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 7624570 + ... + 7640569.

Almost surely, 2^122121112000 is an apocalyptic number.

122121112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121112000 is an abundant number, since it is smaller than the sum of its proper divisors (180311841680).

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

122121112000 is an equidigital number, since it uses as much as digits as its factorization.

122121112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265166 (or 15265146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122121112000 its reverse (211121221), we get a palindrome (122332233221).

The spelling of 122121112000 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred twelve thousand".