20211222202210 has 32 divisors (see below), whose sum is σ = 39179908256832. Its totient is φ = 7462370573760.

The previous prime is 20211222202141. The next prime is 20211222202217. The reversal of 20211222202210 is 1220222211202.

It is not an unprimeable number, because it can be changed into a prime (20211222202217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1736325 + ... + 6590695.

It is an arithmetic number, because the mean of its divisors is an integer number (1224372133026).

Almost surely, 2^{20211222202210} is an apocalyptic number.

20211222202210 is a deficient number, since it is larger than the sum of its proper divisors (18968686054622).

20211222202210 is a wasteful number, since it uses less digits than its factorization.

20211222202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886418.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20211222202210 its reverse (1220222211202), we get a palindrome (21431444413412).

The spelling of 20211222202210 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, two hundred two thousand, two hundred ten".