121021211000 has 32 divisors (see below), whose sum is σ = 283189636080. Its totient is φ = 48408484000.

The previous prime is 121021210979. The next prime is 121021211033. The reversal of 121021211000 is 112120121.

It is a super-2 number, since 2×121021211000² (a number of 23 digits) contains 22 as substring.

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, 60509606 + ... + 60511605.

Almost surely, 2^121021211000 is an apocalyptic number.

121021211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121021211000 is an abundant number, since it is smaller than the sum of its proper divisors (162168425080).

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

121021211000 is a wasteful number, since it uses less digits than its factorization.

121021211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121021232 (or 121021218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121021211000 its reverse (112120121), we get a palindrome (121133331121).

The spelling of 121021211000 in words is "one hundred twenty-one billion, twenty-one million, two hundred eleven thousand".