21112333002 has 12 divisors (see below), whose sum is σ = 45743388210. Its totient is φ = 7037444328.

The previous prime is 21112333001. The next prime is 21112333003. The reversal of 21112333002 is 20033321112.

21112333002 is a `hidden beast` number, since 211 + 123 + 330 + 0 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (21112333001) and next prime (21112333003).

It can be written as a sum of positive squares in only one way, i.e., 15311835081 + 5800497921 = 123741^2 + 76161^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1172907389 = 21112333002 / (2 + 1 + 1 + 1 + 2 + 3 + 3 + 3 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (21112333001) 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, 586453677 + ... + 586453712.

Almost surely, 2^21112333002 is an apocalyptic number.

21112333002 is an abundant number, since it is smaller than the sum of its proper divisors (24631055208).

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

21112333002 is a wasteful number, since it uses less digits than its factorization.

21112333002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172907397 (or 1172907394 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21112333002 its reverse (20033321112), we get a palindrome (41145654114).

The spelling of 21112333002 in words is "twenty-one billion, one hundred twelve million, three hundred thirty-three thousand, two".