222220020122 has 4 divisors (see below), whose sum is σ = 333330030186. Its totient is φ = 111110010060.

The previous prime is 222220020107. The next prime is 222220020133. The reversal of 222220020122 is 221020022222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123096424201 + 99123595921 = 350851^2 + 314839^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222220020122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555005029 + ... + 55555005032.

Almost surely, 2^222220020122 is an apocalyptic number.

222220020122 is a deficient number, since it is larger than the sum of its proper divisors (111110010064).

222220020122 is a wasteful number, since it uses less digits than its factorization.

222220020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111110010063.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 222220020122 its reverse (221020022222), we get a palindrome (443240042344).

The spelling of 222220020122 in words is "two hundred twenty-two billion, two hundred twenty million, twenty thousand, one hundred twenty-two".