21100112002010 has 16 divisors (see below), whose sum is σ = 38335156760736. Its totient is φ = 8361165877008.

The previous prime is 21100112001959. The next prime is 21100112002043. The reversal of 21100112002010 is 1020021100112.

It is a junction number, because it is equal to n+sod(n) for n = 21100112001982 and 21100112002000.

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, 9859864352 + ... + 9859866491.

It is an arithmetic number, because the mean of its divisors is an integer number (2395947297546).

Almost surely, 2^{21100112002010} is an apocalyptic number.

21100112002010 is a deficient number, since it is larger than the sum of its proper divisors (17235044758726).

21100112002010 is a wasteful number, since it uses less digits than its factorization.

21100112002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19719730957.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21100112002010 its reverse (1020021100112), we get a palindrome (22120133102122).

The spelling of 21100112002010 in words is "twenty-one trillion, one hundred billion, one hundred twelve million, two thousand, ten".