1213222341212 has 48 divisors (see below), whose sum is σ = 2532172188672. Its totient is φ = 497300643840.

The previous prime is 1213222341197. The next prime is 1213222341223. The reversal of 1213222341212 is 2121432223121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7539548 + ... + 7698780.

It is an arithmetic number, because the mean of its divisors is an integer number (52753587264).

Almost surely, 2^{1213222341212} is an apocalyptic number.

It is an amenable number.

1213222341212 is an abundant number, since it is smaller than the sum of its proper divisors (1318949847460).

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

1213222341212 is a wasteful number, since it uses less digits than its factorization.

1213222341212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171098 (or 171096 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

Adding to 1213222341212 its reverse (2121432223121), we get a palindrome (3334654564333).

The spelling of 1213222341212 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, three hundred forty-one thousand, two hundred twelve".