21112011110088 has 24 divisors (see below), whose sum is σ = 57178363423350. Its totient is φ = 7037337036672.

The previous prime is 21112011110087. The next prime is 21112011110171. The reversal of 21112011110088 is 88001111021112.

It can be written as a sum of positive squares in only one way, i.e., 21085343566884 + 26667543204 = 4591878^2 + 163302^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×21112011110088² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21112011110087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146611188193 + ... + 146611188336.

Almost surely, 2^{21112011110088} is an apocalyptic number.

It is an amenable number.

21112011110088 is an abundant number, since it is smaller than the sum of its proper divisors (36066352313262).

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

21112011110088 is a wasteful number, since it uses less digits than its factorization.

21112011110088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293222376541 (or 293222376534 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 27.

The spelling of 21112011110088 in words is "twenty-one trillion, one hundred twelve billion, eleven million, one hundred ten thousand, eighty-eight".