22121002022 has 16 divisors (see below), whose sum is σ = 38297182752. Its totient is φ = 9386563200.

The previous prime is 22121002019. The next prime is 22121002091. The reversal of 22121002022 is 22020012122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 22121001988 and 22121002006.

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, 7820723 + ... + 7823550.

It is an arithmetic number, because the mean of its divisors is an integer number (2393573922).

Almost surely, 2^22121002022 is an apocalyptic number.

22121002022 is a deficient number, since it is larger than the sum of its proper divisors (16176180730).

22121002022 is a wasteful number, since it uses less digits than its factorization.

22121002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15644383.

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

Adding to 22121002022 its reverse (22020012122), we get a palindrome (44141014144).

It can be divided in two parts, 2212100 and 2022, that added together give a palindrome (2214122).

The spelling of 22121002022 in words is "twenty-two billion, one hundred twenty-one million, two thousand, twenty-two".