22013321426452 has 48 divisors (see below), whose sum is σ = 40086231348240. Its totient is φ = 10564761811968.

The previous prime is 22013321426429. The next prime is 22013321426527. The reversal of 22013321426452 is 25462412331022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 31157898256 + 21982163528196 = 176516^2 + 4688514^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12730158 + ... + 14355610.

It is an arithmetic number, because the mean of its divisors is an integer number (835129819755).

Almost surely, 2^{22013321426452} is an apocalyptic number.

It is an amenable number.

22013321426452 is a deficient number, since it is larger than the sum of its proper divisors (18072909921788).

22013321426452 is a wasteful number, since it uses less digits than its factorization.

22013321426452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626172 (or 1626170 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 22013321426452 its reverse (25462412331022), we get a palindrome (47475733757474).

The spelling of 22013321426452 in words is "twenty-two trillion, thirteen billion, three hundred twenty-one million, four hundred twenty-six thousand, four hundred fifty-two".