1022222222 has 12 divisors (see below), whose sum is σ = 1783673640. Its totient is φ = 438095196.

The previous prime is 1022222221. The next prime is 1022222231. The reversal of 1022222222 is 2222222201.

1022222222 is a modest number, since divided by 22222 gives 10222 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1022222222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022222221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5215322 + ... + 5215517.

It is an arithmetic number, because the mean of its divisors is an integer number (148639470).

Almost surely, 2^1022222222 is an apocalyptic number.

1022222222 is a deficient number, since it is larger than the sum of its proper divisors (761451418).

1022222222 is a wasteful number, since it uses less digits than its factorization.

1022222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430855 (or 10430848 counting only the distinct ones).

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

The square root of 1022222222 is about 31972.2101519429. The cubic root of 1022222222 is about 1007.3532051786.

Adding to 1022222222 its reverse (2222222201), we get a palindrome (3244444423).

The spelling of 1022222222 in words is "one billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".