221022012002 has 16 divisors (see below), whose sum is σ = 361679664672. Its totient is φ = 100462528320.

The previous prime is 221022011993. The next prime is 221022012007. The reversal of 221022012002 is 200210220122.

It is not an unprimeable number, because it can be changed into a prime (221022012007) 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, 1871738 + ... + 1986314.

It is an arithmetic number, because the mean of its divisors is an integer number (22604979042).

Almost surely, 2^221022012002 is an apocalyptic number.

221022012002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221022012002 is a deficient number, since it is larger than the sum of its proper divisors (140657652670).

221022012002 is a wasteful number, since it uses less digits than its factorization.

221022012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202273.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221022012002 its reverse (200210220122), we get a palindrome (421232232124).

It can be divided in two parts, 2210220 and 12002, that added together give a palindrome (2222222).

The spelling of 221022012002 in words is "two hundred twenty-one billion, twenty-two million, twelve thousand, two".