1312231222002 has 16 divisors (see below), whose sum is σ = 2762592046560. Its totient is φ = 414388806912.

The previous prime is 1312231221991. The next prime is 1312231222069. The reversal of 1312231222002 is 2002221322131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312231222002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5755399983 + ... + 5755400210.

It is an arithmetic number, because the mean of its divisors is an integer number (172662002910).

Almost surely, 2^{1312231222002} is an apocalyptic number.

1312231222002 is an abundant number, since it is smaller than the sum of its proper divisors (1450360824558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312231222002 is a wasteful number, since it uses less digits than its factorization.

1312231222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11510800217.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1312231222002 its reverse (2002221322131), we get a palindrome (3314452544133).

The spelling of 1312231222002 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, two hundred twenty-two thousand, two".