1313121220122 has 32 divisors (see below), whose sum is σ = 2698030317312. Its totient is φ = 425749518144.

The previous prime is 1313121220067. The next prime is 1313121220133. The reversal of 1313121220122 is 2210221213131.

It is a super-3 number, since 3×1313121220122³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142533 + ... + 1626824.

It is an arithmetic number, because the mean of its divisors is an integer number (84313447416).

Almost surely, 2^{1313121220122} is an apocalyptic number.

1313121220122 is an abundant number, since it is smaller than the sum of its proper divisors (1384909097190).

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

1313121220122 is a wasteful number, since it uses less digits than its factorization.

1313121220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772742.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1313121220122 its reverse (2210221213131), we get a palindrome (3523342433253).

The spelling of 1313121220122 in words is "one trillion, three hundred thirteen billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".