1222222002 has 16 divisors (see below), whose sum is σ = 2449893600. Its totient is φ = 406499072.

The previous prime is 1222221997. The next prime is 1222222003. The reversal of 1222222002 is 2002222221.

It is not an unprimeable number, because it can be changed into a prime (1222222003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224148 + ... + 229535.

It is an arithmetic number, because the mean of its divisors is an integer number (153118350).

Almost surely, 2^1222222002 is an apocalyptic number.

1222222002 is an abundant number, since it is smaller than the sum of its proper divisors (1227671598).

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

1222222002 is a wasteful number, since it uses less digits than its factorization.

1222222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454137.

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

The square root of 1222222002 is about 34960.2917894002. The cubic root of 1222222002 is about 1069.1780457831.

Adding to 1222222002 its reverse (2002222221), we get a palindrome (3224444223).

The spelling of 1222222002 in words is "one billion, two hundred twenty-two million, two hundred twenty-two thousand, two".