1213450331022 has 24 divisors (see below), whose sum is σ = 2629388721960. Its totient is φ = 404445545520.

The previous prime is 1213450331021. The next prime is 1213450331033. The reversal of 1213450331022 is 2201330543121.

1213450331022 is a `hidden beast` number, since 1 + 2 + 1 + 345 + 0 + 3 + 310 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213450331021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2960397 + ... + 3345272.

It is an arithmetic number, because the mean of its divisors is an integer number (109557863415).

Almost surely, 2^{1213450331022} is an apocalyptic number.

1213450331022 is an abundant number, since it is smaller than the sum of its proper divisors (1415938390938).

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

1213450331022 is a wasteful number, since it uses less digits than its factorization.

1213450331022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316368 (or 6316365 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1213450331022 its reverse (2201330543121), we get a palindrome (3414780874143).

The spelling of 1213450331022 in words is "one trillion, two hundred thirteen billion, four hundred fifty million, three hundred thirty-one thousand, twenty-two".