225440011122521 has 32 divisors (see below), whose sum is σ = 246515970032640. Its totient is φ = 204924303811584.

The previous prime is 225440011122481. The next prime is 225440011122533. The reversal of 225440011122521 is 125221110044522.

It is a cyclic number.

It is not a de Polignac number, because 225440011122521 - 2¹⁴ = 225440011106137 is a prime.

It is a super-2 number, since 2×225440011122521² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225440011122551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207531836 + ... + 208615298.

It is an arithmetic number, because the mean of its divisors is an integer number (7703624063520).

Almost surely, 2^{225440011122521} is an apocalyptic number.

It is an amenable number.

225440011122521 is a deficient number, since it is larger than the sum of its proper divisors (21075958910119).

225440011122521 is a wasteful number, since it uses less digits than its factorization.

225440011122521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084505.

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 225440011122521 in words is "two hundred twenty-five trillion, four hundred forty billion, eleven million, one hundred twenty-two thousand, five hundred twenty-one".