22253521233145 has 4 divisors (see below), whose sum is σ = 26704225479780. Its totient is φ = 17802816986512.

The previous prime is 22253521233079. The next prime is 22253521233169. The reversal of 22253521233145 is 54133212535222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12387112538089 + 9866408695056 = 3519533^2 + 3141084^2 .

It is a cyclic number.

It is not a de Polignac number, because 22253521233145 - 2¹⁷ = 22253521102073 is a prime.

It is a super-2 number, since 2×22253521233145² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22253521233098 and 22253521233107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2225352123310 + ... + 2225352123319.

It is an arithmetic number, because the mean of its divisors is an integer number (6676056369945).

Almost surely, 2^{22253521233145} is an apocalyptic number.

It is an amenable number.

22253521233145 is a deficient number, since it is larger than the sum of its proper divisors (4450704246635).

22253521233145 is an equidigital number, since it uses as much as digits as its factorization.

22253521233145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450704246634.

The product of its digits is 432000, while the sum is 40.

Adding to 22253521233145 its reverse (54133212535222), we get a palindrome (76386733768367).

The spelling of 22253521233145 in words is "twenty-two trillion, two hundred fifty-three billion, five hundred twenty-one million, two hundred thirty-three thousand, one hundred forty-five".