22131344233442 has 16 divisors (see below), whose sum is σ = 33207381309312. Its totient is φ = 11062217358720.

The previous prime is 22131344233403. The next prime is 22131344233451. The reversal of 22131344233442 is 24433244313122.

It is a junction number, because it is equal to n+sod(n) for n = 22131344233396 and 22131344233405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390219467 + ... + 390276177.

It is an arithmetic number, because the mean of its divisors is an integer number (2075461331832).

Almost surely, 2^{22131344233442} is an apocalyptic number.

22131344233442 is a deficient number, since it is larger than the sum of its proper divisors (11076037075870).

22131344233442 is a wasteful number, since it uses less digits than its factorization.

22131344233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114193.

The product of its digits is 331776, while the sum is 38.

Adding to 22131344233442 its reverse (24433244313122), we get a palindrome (46564588546564).

The spelling of 22131344233442 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred forty-four million, two hundred thirty-three thousand, four hundred forty-two".