20102222022222 has 64 divisors (see below), whose sum is σ = 43340996738880. Its totient is φ = 6193025040384.

The previous prime is 20102222022193. The next prime is 20102222022229. The reversal of 20102222022222 is 22222022220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102222022229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4189483 + ... + 7599750.

It is an arithmetic number, because the mean of its divisors is an integer number (677203074045).

Almost surely, 2^{20102222022222} is an apocalyptic number.

20102222022222 is an abundant number, since it is smaller than the sum of its proper divisors (23238774716658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20102222022222 is a wasteful number, since it uses less digits than its factorization.

20102222022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11789557.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20102222022222 its reverse (22222022220102), we get a palindrome (42324244242324).

The spelling of 20102222022222 in words is "twenty trillion, one hundred two billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-two".