22551261422 has 16 divisors (see below), whose sum is σ = 33939354240. Its totient is φ = 11238172728.

The previous prime is 22551261401. The next prime is 22551261427. The reversal of 22551261422 is 22416215522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551261427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1950623 + ... + 1962149.

It is an arithmetic number, because the mean of its divisors is an integer number (2121209640).

Almost surely, 2^22551261422 is an apocalyptic number.

22551261422 is a deficient number, since it is larger than the sum of its proper divisors (11388092818).

22551261422 is a wasteful number, since it uses less digits than its factorization.

22551261422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14695.

The product of its digits is 19200, while the sum is 32.

Adding to 22551261422 its reverse (22416215522), we get a palindrome (44967476944).

The spelling of 22551261422 in words is "twenty-two billion, five hundred fifty-one million, two hundred sixty-one thousand, four hundred twenty-two".