221222020102 has 12 divisors (see below), whose sum is σ = 352500832260. Its totient is φ = 104104479776.

The previous prime is 221222020099. The next prime is 221222020111. The reversal of 221222020102 is 201020222122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191367952 + ... + 191369107.

It is an arithmetic number, because the mean of its divisors is an integer number (29375069355).

Almost surely, 2^221222020102 is an apocalyptic number.

221222020102 is a deficient number, since it is larger than the sum of its proper divisors (131278812158).

221222020102 is a wasteful number, since it uses less digits than its factorization.

221222020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382737095 (or 382737078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221222020102 its reverse (201020222122), we get a palindrome (422242242224).

It can be divided in two parts, 221222020 and 102, that added together give a palindrome (221222122).

The spelling of 221222020102 in words is "two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, one hundred two".