121132021000 has 64 divisors (see below), whose sum is σ = 300122437680. Its totient is φ = 45602636800.

The previous prime is 121132020967. The next prime is 121132021001. The reversal of 121132021000 is 120231121.

121132021000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10638272164 + 110493748836 = 103142^2 + 332406^2 .

It is not an unprimeable number, because it can be changed into a prime (121132021001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3545707 + ... + 3579706.

Almost surely, 2^121132021000 is an apocalyptic number.

121132021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121132021000 is an abundant number, since it is smaller than the sum of its proper divisors (178990416680).

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

121132021000 is a wasteful number, since it uses less digits than its factorization.

121132021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125451 (or 7125437 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121132021000 its reverse (120231121), we get a palindrome (121252252121).

The spelling of 121132021000 in words is "one hundred twenty-one billion, one hundred thirty-two million, twenty-one thousand".