133121022100 has 36 divisors (see below), whose sum is σ = 315133767648. Its totient is φ = 48407644000.

The previous prime is 133121022053. The next prime is 133121022107. The reversal of 133121022100 is 1220121331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121022107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60508456 + ... + 60510655.

It is an arithmetic number, because the mean of its divisors is an integer number (8753715768).

Almost surely, 2^133121022100 is an apocalyptic number.

133121022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133121022100 is an abundant number, since it is smaller than the sum of its proper divisors (182012745548).

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

133121022100 is a wasteful number, since it uses less digits than its factorization.

133121022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121019136 (or 121019129 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 133121022100 its reverse (1220121331), we get a palindrome (134341143431).

The spelling of 133121022100 in words is "one hundred thirty-three billion, one hundred twenty-one million, twenty-two thousand, one hundred".