21226360345131 has 32 divisors (see below), whose sum is σ = 30165180088320. Its totient is φ = 13247613937184.

The previous prime is 21226360345129. The next prime is 21226360345189. The reversal of 21226360345131 is 13154306362212.

It is a cyclic number.

It is not a de Polignac number, because 21226360345131 - 2¹ = 21226360345129 is a prime.

It is a super-2 number, since 2×21226360345131² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21226360345131.

It is not an unprimeable number, because it can be changed into a prime (21226360345231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10560555 + ... + 12408788.

It is an arithmetic number, because the mean of its divisors is an integer number (942661877760).

Almost surely, 2^{21226360345131} is an apocalyptic number.

21226360345131 is a deficient number, since it is larger than the sum of its proper divisors (8938819743189).

21226360345131 is a wasteful number, since it uses less digits than its factorization.

21226360345131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22969655.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 21226360345131 in words is "twenty-one trillion, two hundred twenty-six billion, three hundred sixty million, three hundred forty-five thousand, one hundred thirty-one".