2222021100122 has 4 divisors (see below), whose sum is σ = 3333031650186. Its totient is φ = 1111010550060.

The previous prime is 2222021100109. The next prime is 2222021100179. The reversal of 2222021100122 is 2210011202222.

It is a happy number.

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., 1279158738001 + 942862362121 = 1130999^2 + 971011^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2222021100122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555505275029 + ... + 555505275032.

Almost surely, 2^{2222021100122} is an apocalyptic number.

2222021100122 is a deficient number, since it is larger than the sum of its proper divisors (1111010550064).

2222021100122 is a wasteful number, since it uses less digits than its factorization.

2222021100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111010550063.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2222021100122 its reverse (2210011202222), we get a palindrome (4432032302344).

The spelling of 2222021100122 in words is "two trillion, two hundred twenty-two billion, twenty-one million, one hundred thousand, one hundred twenty-two".