22221121022122 has 24 divisors (see below), whose sum is σ = 38230229062368. Its totient is φ = 9661356963720.

The previous prime is 22221121022117. The next prime is 22221121022131. The reversal of 22221121022122 is 22122012112222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22221121022093 and 22221121022102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1996142568 + ... + 1996153699.

It is an arithmetic number, because the mean of its divisors is an integer number (1592926210932).

Almost surely, 2^{22221121022122} is an apocalyptic number.

22221121022122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22221121022122 is a deficient number, since it is larger than the sum of its proper divisors (16009108040246).

22221121022122 is a wasteful number, since it uses less digits than its factorization.

22221121022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992296314 (or 3992296303 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22221121022122 its reverse (22122012112222), we get a palindrome (44343133134344).

The spelling of 22221121022122 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, one hundred twenty-two".