22220222131 has 2 divisors, whose sum is σ = 22220222132. Its totient is φ = 22220222130.

The previous prime is 22220222041. The next prime is 22220222161. The reversal of 22220222131 is 13122202222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22220222131 - 2⁹ = 22220221619 is a prime.

It is a super-2 number, since 2×22220222131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22220222099 and 22220222108.

It is not a weakly prime, because it can be changed into another prime (22220222161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110111065 + 11110111066.

It is an arithmetic number, because the mean of its divisors is an integer number (11110111066).

Almost surely, 2^22220222131 is an apocalyptic number.

22220222131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220222131 is an equidigital number, since it uses as much as digits as its factorization.

22220222131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22220222131 its reverse (13122202222), we get a palindrome (35342424353).

The spelling of 22220222131 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred thirty-one".