1312223212001 has 32 divisors (see below), whose sum is σ = 1496204962560. Its totient is φ = 1140855964416.

The previous prime is 1312223211973. The next prime is 1312223212009. The reversal of 1312223212001 is 1002123222131.

It is a cyclic number.

It is not a de Polignac number, because 1312223212001 - 2³⁰ = 1311149470177 is a prime.

It is a super-2 number, since 2×1312223212001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312223212009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70400255 + ... + 70418891.

It is an arithmetic number, because the mean of its divisors is an integer number (46756405080).

Almost surely, 2^{1312223212001} is an apocalyptic number.

It is an amenable number.

1312223212001 is a deficient number, since it is larger than the sum of its proper divisors (183981750559).

1312223212001 is a wasteful number, since it uses less digits than its factorization.

1312223212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20313.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1312223212001 its reverse (1002123222131), we get a palindrome (2314346434132).

The spelling of 1312223212001 in words is "one trillion, three hundred twelve billion, two hundred twenty-three million, two hundred twelve thousand, one".