21110210212112 has 80 divisors (see below), whose sum is σ = 46821967785600. Its totient is φ = 9032162135040.

The previous prime is 21110210212103. The next prime is 21110210212139. The reversal of 21110210212112 is 21121201201112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164014439 + ... + 164143097.

It is an arithmetic number, because the mean of its divisors is an integer number (585274597320).

Almost surely, 2^{21110210212112} is an apocalyptic number.

It is an amenable number.

21110210212112 is an abundant number, since it is smaller than the sum of its proper divisors (25711757573488).

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

21110210212112 is a wasteful number, since it uses less digits than its factorization.

21110210212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131104 (or 131098 counting only the distinct ones).

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

Adding to 21110210212112 its reverse (21121201201112), we get a palindrome (42231411413224).

The spelling of 21110210212112 in words is "twenty-one trillion, one hundred ten billion, two hundred ten million, two hundred twelve thousand, one hundred twelve".