102221200020212 has 36 divisors (see below), whose sum is σ = 224100323126820. Its totient is φ = 40439156050944.

The previous prime is 102221200020193. The next prime is 102221200020299. The reversal of 102221200020212 is 212020002122201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66934226019556 + 35286974000656 = 8181334^2 + 5940284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20059102637 + ... + 20059107732.

It is an arithmetic number, because the mean of its divisors is an integer number (6225008975745).

Almost surely, 2^{102221200020212} is an apocalyptic number.

It is an amenable number.

102221200020212 is an abundant number, since it is smaller than the sum of its proper divisors (121879123106608).

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

102221200020212 is a wasteful number, since it uses less digits than its factorization.

102221200020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40118210400 (or 40118210391 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102221200020212 its reverse (212020002122201), we get a palindrome (314241202142413).

The spelling of 102221200020212 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred million, twenty thousand, two hundred twelve".