22021000212202 has 16 divisors (see below), whose sum is σ = 33062392044360. Its totient is φ = 11000205042688.

The previous prime is 22021000212199. The next prime is 22021000212209. The reversal of 22021000212202 is 20221200012022.

It can be written as a sum of positive squares in 4 ways, for example, as 13550799061881 + 8470201150321 = 3681141^2 + 2910361^2 .

It is not an unprimeable number, because it can be changed into a prime (22021000212209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19854138 + ... + 20933914.

Almost surely, 2^{22021000212202} is an apocalyptic number.

22021000212202 is a deficient number, since it is larger than the sum of its proper divisors (11041391832158).

22021000212202 is a wasteful number, since it uses less digits than its factorization.

22021000212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089305.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021000212202 its reverse (20221200012022), we get a palindrome (42242200224224).

The spelling of 22021000212202 in words is "twenty-two trillion, twenty-one billion, two hundred twelve thousand, two hundred two".