22051822531 has 2 divisors, whose sum is σ = 22051822532. Its totient is φ = 22051822530.

The previous prime is 22051822453. The next prime is 22051822607. The reversal of 22051822531 is 13522815022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22051822531 - 2³³ = 13461887939 is a prime.

It is a super-2 number, since 2×22051822531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22051822493 and 22051822502.

It is not a weakly prime, because it can be changed into another prime (22051822231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025911265 + 11025911266.

It is an arithmetic number, because the mean of its divisors is an integer number (11025911266).

Almost surely, 2^22051822531 is an apocalyptic number.

22051822531 is a deficient number, since it is larger than the sum of its proper divisors (1).

22051822531 is an equidigital number, since it uses as much as digits as its factorization.

22051822531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

It can be divided in two parts, 220518 and 22531, that added together give a square (243049 = 493²).

The spelling of 22051822531 in words is "twenty-two billion, fifty-one million, eight hundred twenty-two thousand, five hundred thirty-one".