1222122122 has 8 divisors (see below), whose sum is σ = 1974197316. Its totient is φ = 564056352.

The previous prime is 1222122103. The next prime is 1222122131. The reversal of 1222122122 is 2212212221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1219336561 + 2785561 = 34919^2 + 1669^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1222122122.

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, 23502323 + ... + 23502374.

Almost surely, 2^1222122122 is an apocalyptic number.

1222122122 is a deficient number, since it is larger than the sum of its proper divisors (752075194).

1222122122 is a wasteful number, since it uses less digits than its factorization.

1222122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47004712.

The product of its digits is 128, while the sum is 17.

The square root of 1222122122 is about 34958.8632824353. The cubic root of 1222122122 is about 1069.1489205745.

Adding to 1222122122 its reverse (2212212221), we get a palindrome (3434334343).

Subtracting 1222122122 from its reverse (2212212221), we obtain a palindrome (990090099).

It can be divided in two parts, 12221 and 22122, that added together give a palindrome (34343).

The spelling of 1222122122 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".