100121102212112 has 40 divisors (see below), whose sum is σ = 197739666768000. Its totient is φ = 49098036316032.

The previous prime is 100121102212091. The next prime is 100121102212123. The reversal of 100121102212112 is 211212201121001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203677112 + ... + 204168087.

It is an arithmetic number, because the mean of its divisors is an integer number (4943491669200).

Almost surely, 2^{100121102212112} is an apocalyptic number.

It is an amenable number.

100121102212112 is a deficient number, since it is larger than the sum of its proper divisors (97618564555888).

100121102212112 is a wasteful number, since it uses less digits than its factorization.

100121102212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407845503 (or 407845497 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100121102212112 its reverse (211212201121001), we get a palindrome (311333303333113).

The spelling of 100121102212112 in words is "one hundred trillion, one hundred twenty-one billion, one hundred two million, two hundred twelve thousand, one hundred twelve".