20102220112102 has 16 divisors (see below), whose sum is σ = 31929836468112. Its totient is φ = 9459044289280.

The previous prime is 20102220112081. The next prime is 20102220112127. The reversal of 20102220112102 is 20121102220102.

It is a happy number.

It is a congruent number.

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, 25353799 + ... + 26134642.

It is an arithmetic number, because the mean of its divisors is an integer number (1995614779257).

Almost surely, 2^{20102220112102} is an apocalyptic number.

20102220112102 is a deficient number, since it is larger than the sum of its proper divisors (11827616356010).

20102220112102 is a wasteful number, since it uses less digits than its factorization.

20102220112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51499943.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102220112102 its reverse (20121102220102), we get a palindrome (40223322332204).

The spelling of 20102220112102 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred twelve thousand, one hundred two".