121021202112 has 28 divisors (see below), whose sum is σ = 320201931096. Its totient is φ = 40340400640.

The previous prime is 121021202089. The next prime is 121021202153. The reversal of 121021202112 is 211202120121.

It is a super-2 number, since 2×121021202112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021202091 and 121021202100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315159189 + ... + 315159572.

Almost surely, 2^121021202112 is an apocalyptic number.

121021202112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121021202112 is an abundant number, since it is smaller than the sum of its proper divisors (199180728984).

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

121021202112 is an equidigital number, since it uses as much as digits as its factorization.

121021202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630318776 (or 630318766 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121021202112 its reverse (211202120121), we get a palindrome (332223322233).

The spelling of 121021202112 in words is "one hundred twenty-one billion, twenty-one million, two hundred two thousand, one hundred twelve".