222332401 has 4 divisors (see below), whose sum is σ = 224491072. Its totient is φ = 220173732.

The previous prime is 222332399. The next prime is 222332431. The reversal of 222332401 is 104233222.

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 222332401 - 2¹ = 222332399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222332431) 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, 1079181 + ... + 1079386.

It is an arithmetic number, because the mean of its divisors is an integer number (56122768).

Almost surely, 2^222332401 is an apocalyptic number.

It is an amenable number.

222332401 is a deficient number, since it is larger than the sum of its proper divisors (2158671).

222332401 is a wasteful number, since it uses less digits than its factorization.

222332401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158670.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 222332401 is about 14910.8149006015. The cubic root of 222332401 is about 605.8069518009.

Adding to 222332401 its reverse (104233222), we get a palindrome (326565623).

The spelling of 222332401 in words is "two hundred twenty-two million, three hundred thirty-two thousand, four hundred one".