1022222122 has 8 divisors (see below), whose sum is σ = 1533564900. Its totient is φ = 511033824.

The previous prime is 1022222093. The next prime is 1022222147. The reversal of 1022222122 is 2212222201.

It can be written as a sum of positive squares in 2 ways, for example, as 902341521 + 119880601 = 30039^2 + 10949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1022222096 and 1022222105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20347 + ... + 49582.

Almost surely, 2^1022222122 is an apocalyptic number.

1022222122 is a deficient number, since it is larger than the sum of its proper divisors (511342778).

1022222122 is an equidigital number, since it uses as much as digits as its factorization.

1022222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77240.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1022222122 is about 31972.2085880847. The cubic root of 1022222122 is about 1007.3531723301.

Adding to 1022222122 its reverse (2212222201), we get a palindrome (3234444323).

The spelling of 1022222122 in words is "one billion, twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".