222220601 has 4 divisors (see below), whose sum is σ = 225033600. Its totient is φ = 219407604.

The previous prime is 222220553. The next prime is 222220613. The reversal of 222220601 is 106022222.

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 a de Polignac number, because none of the positive numbers 2^k-222220601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222220601.

It is not an unprimeable number, because it can be changed into a prime (222210601) 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, 1406381 + ... + 1406538.

It is an arithmetic number, because the mean of its divisors is an integer number (56258400).

Almost surely, 2^222220601 is an apocalyptic number.

It is an amenable number.

222220601 is a deficient number, since it is larger than the sum of its proper divisors (2812999).

222220601 is an equidigital number, since it uses as much as digits as its factorization.

222220601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812998.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222220601 is about 14907.0654724530. The cubic root of 222220601 is about 605.7053912957.

Adding to 222220601 its reverse (106022222), we get a palindrome (328242823).

The spelling of 222220601 in words is "two hundred twenty-two million, two hundred twenty thousand, six hundred one".