222021022121022 has 64 divisors (see below), whose sum is σ = 511973318995200. Its totient is φ = 63712235220480.

The previous prime is 222021022121011. The next prime is 222021022121023. The reversal of 222021022121022 is 220121220120222.

It is a super-2 number, since 2×222021022121022² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222021022121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021022121023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1975149504 + ... + 1975261907.

It is an arithmetic number, because the mean of its divisors is an integer number (7999583109300).

Almost surely, 2^{222021022121022} is an apocalyptic number.

222021022121022 is an abundant number, since it is smaller than the sum of its proper divisors (289952296874178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222021022121022 is a wasteful number, since it uses less digits than its factorization.

222021022121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950411481.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222021022121022 its reverse (220121220120222), we get a palindrome (442142242241244).

The spelling of 222021022121022 in words is "two hundred twenty-two trillion, twenty-one billion, twenty-two million, one hundred twenty-one thousand, twenty-two".