21322221113210 has 32 divisors (see below), whose sum is σ = 39053507987520. Its totient is φ = 8379389942272.

The previous prime is 21322221113203. The next prime is 21322221113239. The reversal of 21322221113210 is 1231112222312.

It is a super-2 number, since 2×21322221113210² (a number of 27 digits) contains 22 as substring.

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, 9646784 + ... + 11649243.

It is an arithmetic number, because the mean of its divisors is an integer number (1220422124610).

Almost surely, 2^{21322221113210} is an apocalyptic number.

21322221113210 is a deficient number, since it is larger than the sum of its proper divisors (17731286874310).

21322221113210 is a wasteful number, since it uses less digits than its factorization.

21322221113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21297790.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21322221113210 its reverse (1231112222312), we get a palindrome (22553333335522).

The spelling of 21322221113210 in words is "twenty-one trillion, three hundred twenty-two billion, two hundred twenty-one million, one hundred thirteen thousand, two hundred ten".