2253228223521 has 32 divisors (see below), whose sum is σ = 3392069685120. Its totient is φ = 1317868697600.

The previous prime is 2253228223517. The next prime is 2253228223607. The reversal of 2253228223521 is 1253228223522.

It is a cyclic number.

It is not a de Polignac number, because 2253228223521 - 2² = 2253228223517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2253228223521.

It is not an unprimeable number, because it can be changed into a prime (2253228223511) 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 31 ways as a sum of consecutive naturals, for example, 1425811 + ... + 2557223.

It is an arithmetic number, because the mean of its divisors is an integer number (106002177660).

Almost surely, 2^{2253228223521} is an apocalyptic number.

It is an amenable number.

2253228223521 is a deficient number, since it is larger than the sum of its proper divisors (1138841461599).

2253228223521 is a wasteful number, since it uses less digits than its factorization.

2253228223521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133537.

The product of its digits is 230400, while the sum is 39.

Subtracting from 2253228223521 its reverse (1253228223522), we obtain a palindrome (999999999999).

The spelling of 2253228223521 in words is "two trillion, two hundred fifty-three billion, two hundred twenty-eight million, two hundred twenty-three thousand, five hundred twenty-one".