221101022002 has 16 divisors (see below), whose sum is σ = 379046972160. Its totient is φ = 94753418688.

The previous prime is 221101021949. The next prime is 221101022003. The reversal of 221101022002 is 200220101122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221101022003) 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, 5127 + ... + 665002.

It is an arithmetic number, because the mean of its divisors is an integer number (23690435760).

Almost surely, 2^221101022002 is an apocalyptic number.

221101022002 is a deficient number, since it is larger than the sum of its proper divisors (157945950158).

221101022002 is a wasteful number, since it uses less digits than its factorization.

221101022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693705.

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

Adding to 221101022002 its reverse (200220101122), we get a palindrome (421321123124).

The spelling of 221101022002 in words is "two hundred twenty-one billion, one hundred one million, twenty-two thousand, two".