22125223033550 has 576 divisors, whose sum is σ = 55832714477568. Its totient is φ = 6446563200000.

The previous prime is 22125223033541. The next prime is 22125223033567. The reversal of 22125223033550 is 5533032252122.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 22125223033550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 4337426000 + ... + 4337431100.

It is an arithmetic number, because the mean of its divisors is an integer number (96931795968).

Almost surely, 2^{22125223033550} is an apocalyptic number.

22125223033550 is an abundant number, since it is smaller than the sum of its proper divisors (33707491444018).

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

22125223033550 is a wasteful number, since it uses less digits than its factorization.

22125223033550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385 (or 5373 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 22125223033550 its reverse (5533032252122), we get a palindrome (27658255285672).

The spelling of 22125223033550 in words is "twenty-two trillion, one hundred twenty-five billion, two hundred twenty-three million, thirty-three thousand, five hundred fifty".