1313210121222 has 16 divisors (see below), whose sum is σ = 2626443555840. Its totient is φ = 437732821512.

The previous prime is 1313210121149. The next prime is 1313210121227. The reversal of 1313210121222 is 2221210123131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313210121227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190878 + ... + 1631825.

It is an arithmetic number, because the mean of its divisors is an integer number (164152722240).

Almost surely, 2^{1313210121222} is an apocalyptic number.

1313210121222 is an abundant number, since it is smaller than the sum of its proper divisors (1313233434618).

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

1313210121222 is a wasteful number, since it uses less digits than its factorization.

1313210121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942787.

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

Adding to 1313210121222 its reverse (2221210123131), we get a palindrome (3534420244353).

The spelling of 1313210121222 in words is "one trillion, three hundred thirteen billion, two hundred ten million, one hundred twenty-one thousand, two hundred twenty-two".