22100420321243 has 32 divisors (see below), whose sum is σ = 25662412716480. Its totient is φ = 18809724764160.

The previous prime is 22100420321197. The next prime is 22100420321297. The reversal of 22100420321243 is 34212302400122.

It is not a de Polignac number, because 22100420321243 - 2¹⁰ = 22100420320219 is a prime.

It is a super-2 number, since 2×22100420321243² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100420321443) 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, 519292121 + ... + 519334677.

It is an arithmetic number, because the mean of its divisors is an integer number (801950397390).

Almost surely, 2^{22100420321243} is an apocalyptic number.

22100420321243 is a deficient number, since it is larger than the sum of its proper divisors (3561992395237).

22100420321243 is a wasteful number, since it uses less digits than its factorization.

22100420321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57167.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22100420321243 its reverse (34212302400122), we get a palindrome (56312722721365).

The spelling of 22100420321243 in words is "twenty-two trillion, one hundred billion, four hundred twenty million, three hundred twenty-one thousand, two hundred forty-three".