22553123002421 has 12 divisors (see below), whose sum is σ = 24815432263776. Its totient is φ = 20481636464520.

The previous prime is 22553123002391. The next prime is 22553123002493. The reversal of 22553123002421 is 12420032135522.

It is not a de Polignac number, because 22553123002421 - 2¹⁰ = 22553123001397 is a prime.

It is a super-2 number, since 2×22553123002421² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553113002421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96258095 + ... + 96492108.

It is an arithmetic number, because the mean of its divisors is an integer number (2067952688648).

Almost surely, 2^{22553123002421} is an apocalyptic number.

It is an amenable number.

22553123002421 is a deficient number, since it is larger than the sum of its proper divisors (2262309261355).

22553123002421 is a wasteful number, since it uses less digits than its factorization.

22553123002421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192751192 (or 192751181 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 22553123002421 its reverse (12420032135522), we get a palindrome (34973155137943).

The spelling of 22553123002421 in words is "twenty-two trillion, five hundred fifty-three billion, one hundred twenty-three million, two thousand, four hundred twenty-one".