22121022011222 has 32 divisors (see below), whose sum is σ = 34517351013024. Its totient is φ = 10623863577600.

The previous prime is 22121022011191. The next prime is 22121022011243. The reversal of 22121022011222 is 22211022012122.

It is a super-2 number, since 2×22121022011222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22121022011194 and 22121022011203.

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, 23657222 + ... + 24574502.

It is an arithmetic number, because the mean of its divisors is an integer number (1078667219157).

Almost surely, 2^{22121022011222} is an apocalyptic number.

22121022011222 is a deficient number, since it is larger than the sum of its proper divisors (12396329001802).

22121022011222 is a wasteful number, since it uses less digits than its factorization.

22121022011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921984.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22121022011222 its reverse (22211022012122), we get a palindrome (44332044023344).

The spelling of 22121022011222 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-two million, eleven thousand, two hundred twenty-two".