1312200021122 has 8 divisors (see below), whose sum is σ = 1971007461696. Its totient is φ = 655197533892.

The previous prime is 1312200021107. The next prime is 1312200021151. The reversal of 1312200021122 is 2211200022131.

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

It is a super-2 number, since 2×1312200021122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312200021122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451236518 + ... + 451239425.

It is an arithmetic number, because the mean of its divisors is an integer number (246375932712).

Almost surely, 2^{1312200021122} is an apocalyptic number.

1312200021122 is a deficient number, since it is larger than the sum of its proper divisors (658807440574).

1312200021122 is an equidigital number, since it uses as much as digits as its factorization.

1312200021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902476672.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1312200021122 its reverse (2211200022131), we get a palindrome (3523400043253).

The spelling of 1312200021122 in words is "one trillion, three hundred twelve billion, two hundred million, twenty-one thousand, one hundred twenty-two".