221010120102 has 32 divisors (see below), whose sum is σ = 442536514560. Its totient is φ = 73584043040.

The previous prime is 221010120091. The next prime is 221010120109. The reversal of 221010120102 is 201021010122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010120109) 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, 35523352 + ... + 35529572.

It is an arithmetic number, because the mean of its divisors is an integer number (13829266080).

Almost surely, 2^221010120102 is an apocalyptic number.

221010120102 is an abundant number, since it is smaller than the sum of its proper divisors (221526394458).

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

221010120102 is a wasteful number, since it uses less digits than its factorization.

221010120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12188.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221010120102 its reverse (201021010122), we get a palindrome (422031130224).

The spelling of 221010120102 in words is "two hundred twenty-one billion, ten million, one hundred twenty thousand, one hundred two".