22012240134 has 32 divisors (see below), whose sum is σ = 44391561984. Its totient is φ = 7276430880.

The previous prime is 22012240049. The next prime is 22012240157. The reversal of 22012240134 is 43104221022.

It is a self number, because there is not a number n which added to its sum of digits gives 22012240134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426447 + ... + 475269.

It is an arithmetic number, because the mean of its divisors is an integer number (1387236312).

Almost surely, 2^22012240134 is an apocalyptic number.

22012240134 is an abundant number, since it is smaller than the sum of its proper divisors (22379321850).

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

22012240134 is a wasteful number, since it uses less digits than its factorization.

22012240134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49452.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22012240134 its reverse (43104221022), we get a palindrome (65116461156).

The spelling of 22012240134 in words is "twenty-two billion, twelve million, two hundred forty thousand, one hundred thirty-four".