221022102 has 32 divisors (see below), whose sum is σ = 506847744. Its totient is φ = 62942400.

The previous prime is 221022097. The next prime is 221022143. The reversal of 221022102 is 201220122.

221022102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4602 + ... + 21522.

It is an arithmetic number, because the mean of its divisors is an integer number (15838992).

Almost surely, 2^221022102 is an apocalyptic number.

221022102 is an abundant number, since it is smaller than the sum of its proper divisors (285825642).

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

221022102 is a wasteful number, since it uses less digits than its factorization.

221022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17244.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 221022102 is about 14866.8120994381. The cubic root of 221022102 is about 604.6145138985.

Adding to 221022102 its reverse (201220122), we get a palindrome (422242224).

The spelling of 221022102 in words is "two hundred twenty-one million, twenty-two thousand, one hundred two".