22131112303545 has 128 divisors (see below), whose sum is σ = 41532608409600. Its totient is φ = 9852439339008.

The previous prime is 22131112303537. The next prime is 22131112303583. The reversal of 22131112303545 is 54530321113122.

It is a happy number.

It is not a de Polignac number, because 22131112303545 - 2³ = 22131112303537 is a prime.

It is a super-2 number, since 2×22131112303545² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4083981846 + ... + 4083987264.

It is an arithmetic number, because the mean of its divisors is an integer number (324473503200).

Almost surely, 2^{22131112303545} is an apocalyptic number.

It is an amenable number.

22131112303545 is a deficient number, since it is larger than the sum of its proper divisors (19401496106055).

22131112303545 is a wasteful number, since it uses less digits than its factorization.

22131112303545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 22131112303545 its reverse (54530321113122), we get a palindrome (76661433416667).

The spelling of 22131112303545 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred twelve million, three hundred three thousand, five hundred forty-five".