1312220002 has 8 divisors (see below), whose sum is σ = 1979326800. Its totient is φ = 652444404.

The previous prime is 1312219999. The next prime is 1312220029. The reversal of 1312220002 is 2000222131.

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

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, 1832352 + ... + 1833067.

It is an arithmetic number, because the mean of its divisors is an integer number (247415850).

Almost surely, 2^1312220002 is an apocalyptic number.

1312220002 is a deficient number, since it is larger than the sum of its proper divisors (667106798).

1312220002 is a wasteful number, since it uses less digits than its factorization.

1312220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665600.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1312220002 is about 36224.5773198253. The cubic root of 1312220002 is about 1094.8019218729.

Adding to 1312220002 its reverse (2000222131), we get a palindrome (3312442133).

It can be divided in two parts, 13122 and 20002, that added together give a square (33124 = 182²).

The spelling of 1312220002 in words is "one billion, three hundred twelve million, two hundred twenty thousand, two".