22405244031 has 10 divisors (see below), whose sum is σ = 33469562192. Its totient is φ = 14936829300.

The previous prime is 22405244021. The next prime is 22405244033. The reversal of 22405244031 is 13044250422.

It is not a de Polignac number, because 22405244031 - 2¹¹ = 22405241983 is a prime.

It is a super-2 number, since 2×22405244031² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22405243986 and 22405244004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22405244033) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 138303895 + ... + 138304056.

Almost surely, 2^22405244031 is an apocalyptic number.

22405244031 is a deficient number, since it is larger than the sum of its proper divisors (11064318161).

22405244031 is an equidigital number, since it uses as much as digits as its factorization.

22405244031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276607963 (or 276607954 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22405244031 its reverse (13044250422), we get a palindrome (35449494453).

The spelling of 22405244031 in words is "twenty-two billion, four hundred five million, two hundred forty-four thousand, thirty-one".