22072260731 has 8 divisors (see below), whose sum is σ = 22922226720. Its totient is φ = 21228218368.

The previous prime is 22072260713. The next prime is 22072260739. The reversal of 22072260731 is 13706227022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22072260731 is a prime.

It is a super-2 number, since 2×22072260731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22072260739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1473311 + ... + 1488216.

It is an arithmetic number, because the mean of its divisors is an integer number (2865278340).

Almost surely, 2^22072260731 is an apocalyptic number.

22072260731 is a deficient number, since it is larger than the sum of its proper divisors (849965989).

22072260731 is a wasteful number, since it uses less digits than its factorization.

22072260731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961813.

The product of its (nonzero) digits is 14112, while the sum is 32.

Adding to 22072260731 its reverse (13706227022), we get a palindrome (35778487753).

The spelling of 22072260731 in words is "twenty-two billion, seventy-two million, two hundred sixty thousand, seven hundred thirty-one".