1222200222 has 16 divisors (see below), whose sum is σ = 2485831680. Its totient is φ = 400494872.

The previous prime is 1222200181. The next prime is 1222200229. The reversal of 1222200222 is 2220022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222200229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725918 + ... + 1726625.

It is an arithmetic number, because the mean of its divisors is an integer number (155364480).

Almost surely, 2^1222200222 is an apocalyptic number.

1222200222 is an abundant number, since it is smaller than the sum of its proper divisors (1263631458).

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

1222200222 is a wasteful number, since it uses less digits than its factorization.

1222200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452607.

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

The square root of 1222200222 is about 34959.9802917565. The cubic root of 1222200222 is about 1069.1716948267.

Adding to 1222200222 its reverse (2220022221), we get a palindrome (3442222443).

The spelling of 1222200222 in words is "one billion, two hundred twenty-two million, two hundred thousand, two hundred twenty-two".