1313212223222 has 8 divisors (see below), whose sum is σ = 1972527853296. Its totient is φ = 655702938792.

The previous prime is 1313212223207. The next prime is 1313212223233. The reversal of 1313212223222 is 2223222123131.

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

It is a super-2 number, since 2×1313212223222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313212223191 and 1313212223200.

It is a congruent number.

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, 451584593 + ... + 451587500.

It is an arithmetic number, because the mean of its divisors is an integer number (246565981662).

Almost surely, 2^{1313212223222} is an apocalyptic number.

1313212223222 is a deficient number, since it is larger than the sum of its proper divisors (659315630074).

1313212223222 is an equidigital number, since it uses as much as digits as its factorization.

1313212223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903172822.

The product of its digits is 3456, while the sum is 26.

Adding to 1313212223222 its reverse (2223222123131), we get a palindrome (3536434346353).

The spelling of 1313212223222 in words is "one trillion, three hundred thirteen billion, two hundred twelve million, two hundred twenty-three thousand, two hundred twenty-two".