122220211100 has 72 divisors (see below), whose sum is σ = 288447454848. Its totient is φ = 44680608000.

The previous prime is 122220211097. The next prime is 122220211121. The reversal of 122220211100 is 1112022221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334124 + ... + 596723.

Almost surely, 2^122220211100 is an apocalyptic number.

122220211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220211100 is an abundant number, since it is smaller than the sum of its proper divisors (166227243748).

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

122220211100 is a wasteful number, since it uses less digits than its factorization.

122220211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930975 (or 930968 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122220211100 its reverse (1112022221), we get a palindrome (123332233321).

The spelling of 122220211100 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred eleven thousand, one hundred".