21031022022202 has 16 divisors (see below), whose sum is σ = 32829759768960. Its totient is φ = 10092111327088.

The previous prime is 21031022022149. The next prime is 21031022022217. The reversal of 21031022022202 is 20222022013012.

It is a self number, because there is not a number n which added to its sum of digits gives 21031022022202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085630518 + ... + 1085649889.

It is an arithmetic number, because the mean of its divisors is an integer number (2051859985560).

Almost surely, 2^{21031022022202} is an apocalyptic number.

21031022022202 is a deficient number, since it is larger than the sum of its proper divisors (11798737746758).

21031022022202 is a wasteful number, since it uses less digits than its factorization.

21031022022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171280605.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21031022022202 its reverse (20222022013012), we get a palindrome (41253044035214).

The spelling of 21031022022202 in words is "twenty-one trillion, thirty-one billion, twenty-two million, twenty-two thousand, two hundred two".