221002100202102 has 16 divisors (see below), whose sum is σ = 442138100534832. Its totient is φ = 73645050045600.

The previous prime is 221002100202029. The next prime is 221002100202127. The reversal of 221002100202102 is 201202001200122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5579150653 + ... + 5579190264.

It is an arithmetic number, because the mean of its divisors is an integer number (27633631283427).

Almost surely, 2^{221002100202102} is an apocalyptic number.

221002100202102 is an abundant number, since it is smaller than the sum of its proper divisors (221136000332730).

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

221002100202102 is a wasteful number, since it uses less digits than its factorization.

221002100202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11158344223.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221002100202102 its reverse (201202001200122), we get a palindrome (422204101402224).

The spelling of 221002100202102 in words is "two hundred twenty-one trillion, two billion, one hundred million, two hundred two thousand, one hundred two".