222220402 has 8 divisors (see below), whose sum is σ = 336631212. Its totient is φ = 110010000.

The previous prime is 222220357. The next prime is 222220429. The reversal of 222220402 is 204022222.

222220402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203376121 + 18844281 = 14261^2 + 4341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549849 + ... + 550252.

Almost surely, 2^222220402 is an apocalyptic number.

222220402 is a deficient number, since it is larger than the sum of its proper divisors (114410810).

222220402 is a wasteful number, since it uses less digits than its factorization.

222220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100204.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 222220402 is about 14907.0587977642. The cubic root of 222220402 is about 605.7052104912.

Adding to 222220402 its reverse (204022222), we get a palindrome (426242624).

The spelling of 222220402 in words is "two hundred twenty-two million, two hundred twenty thousand, four hundred two".