221022222022 has 16 divisors (see below), whose sum is σ = 380369544480. Its totient is φ = 94355232768.

The previous prime is 221022221989. The next prime is 221022222061. The reversal of 221022222022 is 220222220122.

It is a congruent 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, 30710997 + ... + 30718192.

It is an arithmetic number, because the mean of its divisors is an integer number (23773096530).

Almost surely, 2^221022222022 is an apocalyptic number.

221022222022 is a deficient number, since it is larger than the sum of its proper divisors (159347322458).

221022222022 is a wasteful number, since it uses less digits than its factorization.

221022222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61429455.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 221022222022 its reverse (220222220122), we get a palindrome (441244442144).

The spelling of 221022222022 in words is "two hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand, twenty-two".