222125257 has 4 divisors (see below), whose sum is σ = 233816080. Its totient is φ = 210434436.

The previous prime is 222125131. The next prime is 222125269. The reversal of 222125257 is 752521222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222125257 - 2¹⁵ = 222092489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222125287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5845383 + ... + 5845420.

It is an arithmetic number, because the mean of its divisors is an integer number (58454020).

Almost surely, 2^222125257 is an apocalyptic number.

It is an amenable number.

222125257 is a deficient number, since it is larger than the sum of its proper divisors (11690823).

222125257 is a wasteful number, since it uses less digits than its factorization.

222125257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11690822.

The product of its digits is 5600, while the sum is 28.

The square root of 222125257 is about 14903.8671827147. The cubic root of 222125257 is about 605.6187527095.

Adding to 222125257 its reverse (752521222), we get a palindrome (974646479).

The spelling of 222125257 in words is "two hundred twenty-two million, one hundred twenty-five thousand, two hundred fifty-seven".