22220222112131 has 4 divisors (see below), whose sum is σ = 22221372306000. Its totient is φ = 22219071918264.

The previous prime is 22220222112107. The next prime is 22220222112157. The reversal of 22220222112131 is 13121122202222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220222112131 is a prime.

It is a super-2 number, since 2×22220222112131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22220222112097 and 22220222112106.

It is not an unprimeable number, because it can be changed into a prime (22220222112181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575067956 + ... + 575106593.

It is an arithmetic number, because the mean of its divisors is an integer number (5555343076500).

Almost surely, 2^{22220222112131} is an apocalyptic number.

22220222112131 is a deficient number, since it is larger than the sum of its proper divisors (1150193869).

22220222112131 is a wasteful number, since it uses less digits than its factorization.

22220222112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150193868.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 22220222112131 its reverse (13121122202222), we get a palindrome (35341344314353).

Subtracting from 22220222112131 its reverse (13121122202222), we obtain a palindrome (9099099909909).

The spelling of 22220222112131 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twelve thousand, one hundred thirty-one".