1312121022 has 8 divisors (see below), whose sum is σ = 2624242056. Its totient is φ = 437373672.

The previous prime is 1312121009. The next prime is 1312121051. The reversal of 1312121022 is 2201212131.

1312121022 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

1312121022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1312120992 and 1312121010.

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, 109343413 + ... + 109343424.

It is an arithmetic number, because the mean of its divisors is an integer number (328030257).

Almost surely, 2^1312121022 is an apocalyptic number.

1312121022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1312121022 is a wasteful number, since it uses less digits than its factorization.

1312121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218686842.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1312121022 is about 36223.2110945454. The cubic root of 1312121022 is about 1094.7743944210.

Adding to 1312121022 its reverse (2201212131), we get a palindrome (3513333153).

It can be divided in two parts, 13121 and 21022, that added together give a palindrome (34143).

The spelling of 1312121022 in words is "one billion, three hundred twelve million, one hundred twenty-one thousand, twenty-two".