22212012224131 has 4 divisors (see below), whose sum is σ = 22728570647992. Its totient is φ = 21695453800272.

The previous prime is 22212012224123. The next prime is 22212012224141. The reversal of 22212012224131 is 13142221021222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212012224131 - 2³ = 22212012224123 is a prime.

It is a super-2 number, since 2×22212012224131² (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 = 22212012224096 and 22212012224105.

It is not an unprimeable number, because it can be changed into a prime (22212012224141) 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, 258279211866 + ... + 258279211951.

It is an arithmetic number, because the mean of its divisors is an integer number (5682142661998).

Almost surely, 2^{22212012224131} is an apocalyptic number.

22212012224131 is a deficient number, since it is larger than the sum of its proper divisors (516558423861).

22212012224131 is an equidigital number, since it uses as much as digits as its factorization.

22212012224131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516558423860.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 22212012224131 its reverse (13142221021222), we get a palindrome (35354233245353).

The spelling of 22212012224131 in words is "twenty-two trillion, two hundred twelve billion, twelve million, two hundred twenty-four thousand, one hundred thirty-one".