221210122200102 has 72 divisors (see below), whose sum is σ = 570505839696936. Its totient is φ = 61733057347584.

The previous prime is 221210122200097. The next prime is 221210122200131. The reversal of 221210122200102 is 201002221012122.

It is a happy number.

221210122200102 is a `hidden beast` number, since 221 + 21 + 0 + 122 + 200 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2916300763 + ... + 2916376614.

It is an arithmetic number, because the mean of its divisors is an integer number (7923692218013).

Almost surely, 2^{221210122200102} is an apocalyptic number.

221210122200102 is an abundant number, since it is smaller than the sum of its proper divisors (349295717496834).

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

221210122200102 is a wasteful number, since it uses less digits than its factorization.

221210122200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832677442 (or 5832677432 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221210122200102 its reverse (201002221012122), we get a palindrome (422212343212224).

The spelling of 221210122200102 in words is "two hundred twenty-one trillion, two hundred ten billion, one hundred twenty-two million, two hundred thousand, one hundred two".