22121022 has 32 divisors (see below), whose sum is σ = 55160064. Its totient is φ = 5745600.

The previous prime is 22121003. The next prime is 22121041. The reversal of 22121022 is 22012122.

It is an interprime number because it is at equal distance from previous prime (22121003) and next prime (22121041).

It is a super-2 number, since 2×22121022² = 978679228648968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22120989 and 22121007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23479 + ... + 24402.

It is an arithmetic number, because the mean of its divisors is an integer number (1723752).

Almost surely, 2^22121022 is an apocalyptic number.

22121022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121022 is an abundant number, since it is smaller than the sum of its proper divisors (33039042).

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

22121022 is a wasteful number, since it uses less digits than its factorization.

22121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47904.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22121022 is about 4703.2990549188. The cubic root of 22121022 is about 280.7167944072.

Adding to 22121022 its reverse (22012122), we get a palindrome (44133144).

Subtracting from 22121022 its reverse (22012122), we obtain a square (108900 = 330²).

The spelling of 22121022 in words is "twenty-two million, one hundred twenty-one thousand, twenty-two".