122201210121100 has 36 divisors (see below), whose sum is σ = 289283591962008. Its totient is φ = 44436803680000.

The previous prime is 122201210121061. The next prime is 122201210121169. The reversal of 122201210121100 is 1121012102221.

It is a super-2 number, since 2×122201210121100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55546003501 + ... + 55546005700.

It is an arithmetic number, because the mean of its divisors is an integer number (8035655332278).

Almost surely, 2^{122201210121100} is an apocalyptic number.

122201210121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122201210121100 is an abundant number, since it is smaller than the sum of its proper divisors (167082381840908).

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

122201210121100 is a wasteful number, since it uses less digits than its factorization.

122201210121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111092009226 (or 111092009219 counting only the distinct ones).

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

Adding to 122201210121100 its reverse (1121012102221), we get a palindrome (123322222223321).

The spelling of 122201210121100 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred ten million, one hundred twenty-one thousand, one hundred".