21333112202 has 4 divisors (see below), whose sum is σ = 31999668306. Its totient is φ = 10666556100.

The previous prime is 21333112159. The next prime is 21333112219. The reversal of 21333112202 is 20221133312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11180736121 + 10152376081 = 105739^2 + 100759^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333278049 + ... + 5333278052.

Almost surely, 2^21333112202 is an apocalyptic number.

21333112202 is a deficient number, since it is larger than the sum of its proper divisors (10666556104).

21333112202 is a wasteful number, since it uses less digits than its factorization.

21333112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666556103.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21333112202 its reverse (20221133312), we get a palindrome (41554245514).

The spelling of 21333112202 in words is "twenty-one billion, three hundred thirty-three million, one hundred twelve thousand, two hundred two".