22122143531 has 4 divisors (see below), whose sum is σ = 22237966464. Its totient is φ = 22006320600.

The previous prime is 22122143509. The next prime is 22122143543. The reversal of 22122143531 is 13534122122.

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 22122143531 - 2¹⁰ = 22122142507 is a prime.

It is a super-2 number, since 2×22122143531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22122143531.

It is not an unprimeable number, because it can be changed into a prime (22122143501) 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, 57911180 + ... + 57911561.

It is an arithmetic number, because the mean of its divisors is an integer number (5559491616).

Almost surely, 2^22122143531 is an apocalyptic number.

22122143531 is a deficient number, since it is larger than the sum of its proper divisors (115822933).

22122143531 is a wasteful number, since it uses less digits than its factorization.

22122143531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115822932.

The product of its digits is 2880, while the sum is 26.

Adding to 22122143531 its reverse (13534122122), we get a palindrome (35656265653).

The spelling of 22122143531 in words is "twenty-two billion, one hundred twenty-two million, one hundred forty-three thousand, five hundred thirty-one".