1222002222 has 32 divisors (see below), whose sum is σ = 2794348800. Its totient is φ = 348993408.

The previous prime is 1222002181. The next prime is 1222002241. The reversal of 1222002222 is 2222002221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125029 + ... + 134447.

It is an arithmetic number, because the mean of its divisors is an integer number (87323400).

Almost surely, 2^1222002222 is an apocalyptic number.

1222002222 is an abundant number, since it is smaller than the sum of its proper divisors (1572346578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222002222 is a wasteful number, since it uses less digits than its factorization.

1222002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520.

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

The square root of 1222002222 is about 34957.1483676801. The cubic root of 1222002222 is about 1069.1139553978.

Adding to 1222002222 its reverse (2222002221), we get a palindrome (3444004443).

Subtracting 1222002222 from its reverse (2222002221), we obtain a palindrome (999999999).

The spelling of 1222002222 in words is "one billion, two hundred twenty-two million, two thousand, two hundred twenty-two".