22503144554121 has 64 divisors (see below), whose sum is σ = 37754399232000. Its totient is φ = 11581659936000.

The previous prime is 22503144554119. The next prime is 22503144554159. The reversal of 22503144554121 is 12145544130522.

It is not a de Polignac number, because 22503144554121 - 2¹ = 22503144554119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22503144554121.

It is not an unprimeable number, because it can be changed into a prime (22503144553121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 337340071 + ... + 337406771.

It is an arithmetic number, because the mean of its divisors is an integer number (589912488000).

Almost surely, 2^{22503144554121} is an apocalyptic number.

22503144554121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22503144554121 is a deficient number, since it is larger than the sum of its proper divisors (15251254677879).

22503144554121 is a wasteful number, since it uses less digits than its factorization.

22503144554121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80230.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 22503144554121 its reverse (12145544130522), we get a palindrome (34648688684643).

The spelling of 22503144554121 in words is "twenty-two trillion, five hundred three billion, one hundred forty-four million, five hundred fifty-four thousand, one hundred twenty-one".