100112111010021 has 16 divisors (see below), whose sum is σ = 145618104075840. Its totient is φ = 60673803313920.

The previous prime is 100112111010019. The next prime is 100112111010113. The reversal of 100112111010021 is 120010111211001.

It is not a de Polignac number, because 100112111010021 - 2¹ = 100112111010019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100112111009979 and 100112111010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112111011021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5222941 + ... + 15083213.

It is an arithmetic number, because the mean of its divisors is an integer number (9101131504740).

Almost surely, 2^{100112111010021} is an apocalyptic number.

100112111010021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100112111010021 is a deficient number, since it is larger than the sum of its proper divisors (45505993065819).

100112111010021 is a wasteful number, since it uses less digits than its factorization.

100112111010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167956.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 100112111010021 its reverse (120010111211001), we get a palindrome (220122222221022).

The spelling of 100112111010021 in words is "one hundred trillion, one hundred twelve billion, one hundred eleven million, ten thousand, twenty-one".