21022000102210 has 32 divisors (see below), whose sum is σ = 38763874873584. Its totient is φ = 8203420032000.

The previous prime is 21022000102157. The next prime is 21022000102223. The reversal of 21022000102210 is 1220100022012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11233242669609 + 9788757432601 = 3351603^2 + 3128699^2 .

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, 11015230 + ... + 12781990.

Almost surely, 2^{21022000102210} is an apocalyptic number.

21022000102210 is a deficient number, since it is larger than the sum of its proper divisors (17741874771374).

21022000102210 is a wasteful number, since it uses less digits than its factorization.

21022000102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795830.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21022000102210 its reverse (1220100022012), we get a palindrome (22242100124222).

The spelling of 21022000102210 in words is "twenty-one trillion, twenty-two billion, one hundred two thousand, two hundred ten".