221002221210202 has 16 divisors (see below), whose sum is σ = 338571066412800. Its totient is φ = 108145400075728.

The previous prime is 221002221210163. The next prime is 221002221210209. The reversal of 221002221210202 is 202012122200122.

It is a super-2 number, since 2×221002221210202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221002221210202.

It is not an unprimeable number, because it can be changed into a prime (221002221210209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48039553 + ... + 52438564.

It is an arithmetic number, because the mean of its divisors is an integer number (21160691650800).

Almost surely, 2^{221002221210202} is an apocalyptic number.

221002221210202 is a deficient number, since it is larger than the sum of its proper divisors (117568845202598).

221002221210202 is a wasteful number, since it uses less digits than its factorization.

221002221210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100501565.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221002221210202 its reverse (202012122200122), we get a palindrome (423014343410324).

The spelling of 221002221210202 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-one million, two hundred ten thousand, two hundred two".