221002221010 has 16 divisors (see below), whose sum is σ = 397957577472. Its totient is φ = 88366759600.

The previous prime is 221002221007. The next prime is 221002221043. The reversal of 221002221010 is 10122200122.

It is a happy 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, 4238896 + ... + 4290715.

It is an arithmetic number, because the mean of its divisors is an integer number (24872348592).

Almost surely, 2^221002221010 is an apocalyptic number.

221002221010 is a deficient number, since it is larger than the sum of its proper divisors (176955356462).

221002221010 is a wasteful number, since it uses less digits than its factorization.

221002221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532209.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221002221010 its reverse (10122200122), we get a palindrome (231124421132).

The spelling of 221002221010 in words is "two hundred twenty-one billion, two million, two hundred twenty-one thousand, ten".