22542104312 has 128 divisors (see below), whose sum is σ = 56362521600. Its totient is φ = 8197797888.

The previous prime is 22542104303. The next prime is 22542104369. The reversal of 22542104312 is 21340124522.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510989 + ... + 553347.

It is an arithmetic number, because the mean of its divisors is an integer number (440332200).

Almost surely, 2^22542104312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22542104312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28181260800).

22542104312 is an abundant number, since it is smaller than the sum of its proper divisors (33820417288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22542104312 is a wasteful number, since it uses less digits than its factorization.

22542104312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42445 (or 42441 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 22542104312 its reverse (21340124522), we get a palindrome (43882228834).

It can be divided in two parts, 2254210 and 4312, that added together give a palindrome (2258522).

The spelling of 22542104312 in words is "twenty-two billion, five hundred forty-two million, one hundred four thousand, three hundred twelve".