100121220110212 has 96 divisors (see below), whose sum is σ = 204879430473984. Its totient is φ = 41927696832000.

The previous prime is 100121220110209. The next prime is 100121220110251. The reversal of 100121220110212 is 212011022121001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220648638 + ... + 221101930.

It is an arithmetic number, because the mean of its divisors is an integer number (2134160734104).

Almost surely, 2^{100121220110212} is an apocalyptic number.

It is an amenable number.

100121220110212 is an abundant number, since it is smaller than the sum of its proper divisors (104758210363772).

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

100121220110212 is a wasteful number, since it uses less digits than its factorization.

100121220110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454429 (or 454427 counting only the distinct ones).

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

Adding to 100121220110212 its reverse (212011022121001), we get a palindrome (312132242231213).

The spelling of 100121220110212 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, two hundred twelve".