221012012202 has 16 divisors (see below), whose sum is σ = 442030102560. Its totient is φ = 73669657712.

The previous prime is 221012012161. The next prime is 221012012261. The reversal of 221012012202 is 202210210122.

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, 318868 + ... + 737360.

It is an arithmetic number, because the mean of its divisors is an integer number (27626881410).

Almost surely, 2^221012012202 is an apocalyptic number.

221012012202 is an abundant number, since it is smaller than the sum of its proper divisors (221018090358).

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

221012012202 is a wasteful number, since it uses less digits than its factorization.

221012012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506517.

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

Adding to 221012012202 its reverse (202210210122), we get a palindrome (423222222324).

The spelling of 221012012202 in words is "two hundred twenty-one billion, twelve million, twelve thousand, two hundred two".