221211102202002 has 24 divisors (see below), whose sum is σ = 522862605205200. Its totient is φ = 67033667333880.

The previous prime is 221211102201983. The next prime is 221211102202031. The reversal of 221211102202002 is 200202201112122.

It is a happy number.

221211102202002 is a `hidden beast` number, since 2 + 21 + 211 + 10 + 220 + 200 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558613894252 + ... + 558613894647.

It is an arithmetic number, because the mean of its divisors is an integer number (21785941883550).

Almost surely, 2^{221211102202002} is an apocalyptic number.

221211102202002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221211102202002 is an abundant number, since it is smaller than the sum of its proper divisors (301651503003198).

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

221211102202002 is a wasteful number, since it uses less digits than its factorization.

221211102202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117227788918 (or 1117227788915 counting only the distinct ones).

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

Adding to 221211102202002 its reverse (200202201112122), we get a palindrome (421413303314124).

The spelling of 221211102202002 in words is "two hundred twenty-one trillion, two hundred eleven billion, one hundred two million, two hundred two thousand, two".