1312221300022 has 4 divisors (see below), whose sum is σ = 1968331950036. Its totient is φ = 656110650010.

The previous prime is 1312221299989. The next prime is 1312221300073. The reversal of 1312221300022 is 2200031222131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328055325004 + ... + 328055325007.

It is an arithmetic number, because the mean of its divisors is an integer number (492082987509).

Almost surely, 2^{1312221300022} is an apocalyptic number.

1312221300022 is a deficient number, since it is larger than the sum of its proper divisors (656110650014).

1312221300022 is an equidigital number, since it uses as much as digits as its factorization.

1312221300022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656110650013.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1312221300022 its reverse (2200031222131), we get a palindrome (3512252522153).

The spelling of 1312221300022 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, three hundred thousand, twenty-two".