225122420522 has 4 divisors (see below), whose sum is σ = 337683630786. Its totient is φ = 112561210260.

The previous prime is 225122420473. The next prime is 225122420527. The reversal of 225122420522 is 225024221522.

225122420522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225024221522 = 2 ⋅112512110761.

It can be written as a sum of positive squares in only one way, i.e., 157148023561 + 67974396961 = 396419^2 + 260719^2 .

It is not an unprimeable number, because it can be changed into a prime (225122420527) 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 as a sum of consecutive naturals, namely, 56280605129 + ... + 56280605132.

Almost surely, 2^225122420522 is an apocalyptic number.

225122420522 is a deficient number, since it is larger than the sum of its proper divisors (112561210264).

225122420522 is a wasteful number, since it uses less digits than its factorization.

225122420522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112561210263.

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 225122420522 in words is "two hundred twenty-five billion, one hundred twenty-two million, four hundred twenty thousand, five hundred twenty-two".