222022401 has 4 divisors (see below), whose sum is σ = 296029872. Its totient is φ = 148014932.

The previous prime is 222022399. The next prime is 222022417. The reversal of 222022401 is 104220222.

222022401 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 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 222022401 - 2¹ = 222022399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222022001) 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, 37003731 + ... + 37003736.

It is an arithmetic number, because the mean of its divisors is an integer number (74007468).

Almost surely, 2^222022401 is an apocalyptic number.

It is an amenable number.

222022401 is a deficient number, since it is larger than the sum of its proper divisors (74007471).

222022401 is an equidigital number, since it uses as much as digits as its factorization.

222022401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74007470.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 222022401 is about 14900.4161351286. The cubic root of 222022401 is about 605.5252602051.

Adding to 222022401 its reverse (104220222), we get a palindrome (326242623).

The spelling of 222022401 in words is "two hundred twenty-two million, twenty-two thousand, four hundred one".