122211120021100 has 36 divisors (see below), whose sum is σ = 289307051398008. Its totient is φ = 44440407280000.

The previous prime is 122211120021059. The next prime is 122211120021113. The reversal of 122211120021100 is 1120021112221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55550508001 + ... + 55550510200.

It is an arithmetic number, because the mean of its divisors is an integer number (8036306983278).

Almost surely, 2^{122211120021100} is an apocalyptic number.

122211120021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211120021100 is an abundant number, since it is smaller than the sum of its proper divisors (167095931376908).

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

122211120021100 is a wasteful number, since it uses less digits than its factorization.

122211120021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111101018226 (or 111101018219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122211120021100 its reverse (1120021112221), we get a palindrome (123331141133321).

The spelling of 122211120021100 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred twenty million, twenty-one thousand, one hundred".