22232121212431 has 16 divisors (see below), whose sum is σ = 24714878610688. Its totient is φ = 19859748480000.

The previous prime is 22232121212423. The next prime is 22232121212447. The reversal of 22232121212431 is 13421212123222.

It is not a de Polignac number, because 22232121212431 - 2³ = 22232121212423 is a prime.

It is a super-2 number, since 2×22232121212431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22232121212431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232121212131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47270431 + ... + 47738431.

It is an arithmetic number, because the mean of its divisors is an integer number (1544679913168).

Almost surely, 2^{22232121212431} is an apocalyptic number.

22232121212431 is a deficient number, since it is larger than the sum of its proper divisors (2482757398257).

22232121212431 is a wasteful number, since it uses less digits than its factorization.

22232121212431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585922.

The product of its digits is 4608, while the sum is 28.

Adding to 22232121212431 its reverse (13421212123222), we get a palindrome (35653333335653).

The spelling of 22232121212431 in words is "twenty-two trillion, two hundred thirty-two billion, one hundred twenty-one million, two hundred twelve thousand, four hundred thirty-one".