1222122002 has 16 divisors (see below), whose sum is σ = 1899647640. Its totient is φ = 588978432.

The previous prime is 1222122001. The next prime is 1222122017. The reversal of 1222122002 is 2002212221.

It can be written as a sum of positive squares in 4 ways, for example, as 825355441 + 396766561 = 28729^2 + 19919^2 .

It is not an unprimeable number, because it can be changed into a prime (1222122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16628 + ... + 52160.

Almost surely, 2^1222122002 is an apocalyptic number.

1222122002 is a deficient number, since it is larger than the sum of its proper divisors (677525638).

1222122002 is a wasteful number, since it uses less digits than its factorization.

1222122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36157.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1222122002 is about 34958.8615661323. The cubic root of 1222122002 is about 1069.1488855813.

Adding to 1222122002 its reverse (2002212221), we get a palindrome (3224334223).

The spelling of 1222122002 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, two".