22561454220112 has 40 divisors (see below), whose sum is σ = 44912056133672. Its totient is φ = 10971488102400.

The previous prime is 22561454220103. The next prime is 22561454220119. The reversal of 22561454220112 is 21102245416522.

It can be written as a sum of positive squares in 4 ways, for example, as 772387868736 + 21789066351376 = 878856^2 + 4667876^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561454220119) 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, 6066189 + ... + 9051052.

Almost surely, 2^{22561454220112} is an apocalyptic number.

It is an amenable number.

22561454220112 is a deficient number, since it is larger than the sum of its proper divisors (22350601913560).

22561454220112 is a wasteful number, since it uses less digits than its factorization.

22561454220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15119807 (or 15119801 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 22561454220112 its reverse (21102245416522), we get a palindrome (43663699636634).

The spelling of 22561454220112 in words is "twenty-two trillion, five hundred sixty-one billion, four hundred fifty-four million, two hundred twenty thousand, one hundred twelve".