22144004334552 has 32 divisors (see below), whose sum is σ = 55363835174400. Its totient is φ = 7380824866464.

The previous prime is 22144004334547. The next prime is 22144004334587. The reversal of 22144004334552 is 25543340044122.

It is a self number, because there is not a number n which added to its sum of digits gives 22144004334552.

It is a congruent number.

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, 31514748 + ... + 32209739.

It is an arithmetic number, because the mean of its divisors is an integer number (1730119849200).

Almost surely, 2^{22144004334552} is an apocalyptic number.

It is an amenable number.

22144004334552 is an abundant number, since it is smaller than the sum of its proper divisors (33219830839848).

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

22144004334552 is a wasteful number, since it uses less digits than its factorization.

22144004334552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63738975 (or 63738971 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 22144004334552 its reverse (25543340044122), we get a palindrome (47687344378674).

The spelling of 22144004334552 in words is "twenty-two trillion, one hundred forty-four billion, four million, three hundred thirty-four thousand, five hundred fifty-two".