221220222022 has 16 divisors (see below), whose sum is σ = 343545526800. Its totient is φ = 106711108000.

The previous prime is 221220221987. The next prime is 221220222049. The reversal of 221220222022 is 220222022122.

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, 1441729 + ... + 1587772.

It is an arithmetic number, because the mean of its divisors is an integer number (21471595425).

Almost surely, 2^221220222022 is an apocalyptic number.

221220222022 is a deficient number, since it is larger than the sum of its proper divisors (122325304778).

221220222022 is a wasteful number, since it uses less digits than its factorization.

221220222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030791.

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

Adding to 221220222022 its reverse (220222022122), we get a palindrome (441442244144).

The spelling of 221220222022 in words is "two hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, twenty-two".