222252401 has 4 divisors (see below), whose sum is σ = 254002752. Its totient is φ = 190502052.

The previous prime is 222252397. The next prime is 222252439. The reversal of 222252401 is 104252222.

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 222252401 - 2² = 222252397 is a prime.

It is a super-2 number, since 2×222252401² = 98792259500529602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222252001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15875165 + ... + 15875178.

It is an arithmetic number, because the mean of its divisors is an integer number (63500688).

Almost surely, 2^222252401 is an apocalyptic number.

It is an amenable number.

222252401 is a deficient number, since it is larger than the sum of its proper divisors (31750351).

222252401 is an equidigital number, since it uses as much as digits as its factorization.

222252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31750350.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 222252401 is about 14908.1320426135. The cubic root of 222252401 is about 605.7342822755.

The spelling of 222252401 in words is "two hundred twenty-two million, two hundred fifty-two thousand, four hundred one".