22254223531 has 4 divisors (see below), whose sum is σ = 22366054000. Its totient is φ = 22142393064.

The previous prime is 22254223517. The next prime is 22254223553. The reversal of 22254223531 is 13532245222.

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 22254223531 - 2¹³ = 22254215339 is a prime.

It is a super-2 number, since 2×22254223531² (a number of 21 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 = 22254223493 and 22254223502.

It is not an unprimeable number, because it can be changed into a prime (22254223561) 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, 55914936 + ... + 55915333.

It is an arithmetic number, because the mean of its divisors is an integer number (5591513500).

Almost surely, 2^22254223531 is an apocalyptic number.

22254223531 is a deficient number, since it is larger than the sum of its proper divisors (111830469).

22254223531 is a wasteful number, since it uses less digits than its factorization.

22254223531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111830468.

The product of its digits is 28800, while the sum is 31.

Adding to 22254223531 its reverse (13532245222), we get a palindrome (35786468753).

The spelling of 22254223531 in words is "twenty-two billion, two hundred fifty-four million, two hundred twenty-three thousand, five hundred thirty-one".