221002211222010 has 96 divisors (see below), whose sum is σ = 598447404427392. Its totient is φ = 56533492874880.

The previous prime is 221002211221823. The next prime is 221002211222021. The reversal of 221002211222010 is 10222112200122.

It is a happy number.

221002211222010 is a `hidden beast` number, since 2 + 210 + 0 + 221 + 1 + 2 + 220 + 10 = 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 47 ways as a sum of consecutive naturals, for example, 467137024 + ... + 467609883.

It is an arithmetic number, because the mean of its divisors is an integer number (6233827129452).

Almost surely, 2^{221002211222010} is an apocalyptic number.

221002211222010 is an abundant number, since it is smaller than the sum of its proper divisors (377445193205382).

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

221002211222010 is a wasteful number, since it uses less digits than its factorization.

221002211222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934747028 (or 934747025 counting only the distinct ones).

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

Adding to 221002211222010 its reverse (10222112200122), we get a palindrome (231224323422132).

The spelling of 221002211222010 in words is "two hundred twenty-one trillion, two billion, two hundred eleven million, two hundred twenty-two thousand, ten".