100021010121112 has 8 divisors (see below), whose sum is σ = 187539393977100. Its totient is φ = 50010505060552.

The previous prime is 100021010121103. The next prime is 100021010121113. The reversal of 100021010121112 is 211121010120001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 100021010121092 and 100021010121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021010121113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251313132562 + ... + 6251313132577.

Almost surely, 2^{100021010121112} is an apocalyptic number.

It is an amenable number.

100021010121112 is a deficient number, since it is larger than the sum of its proper divisors (87518383855988).

100021010121112 is a wasteful number, since it uses less digits than its factorization.

100021010121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12502626265145 (or 12502626265141 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100021010121112 its reverse (211121010120001), we get a palindrome (311142020241113).

The spelling of 100021010121112 in words is "one hundred trillion, twenty-one billion, ten million, one hundred twenty-one thousand, one hundred twelve".