1213133331222 has 24 divisors (see below), whose sum is σ = 2628743893776. Its totient is φ = 404333416656.

The previous prime is 1213133331217. The next prime is 1213133331239. The reversal of 1213133331222 is 2221333313121.

1213133331222 is a `hidden beast` number, since 1 + 2 + 1 + 313 + 33 + 312 + 2 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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, 3527853 + ... + 3856424.

It is an arithmetic number, because the mean of its divisors is an integer number (109530995574).

Almost surely, 2^{1213133331222} is an apocalyptic number.

1213133331222 is an abundant number, since it is smaller than the sum of its proper divisors (1415610562554).

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

1213133331222 is a wasteful number, since it uses less digits than its factorization.

1213133331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393412 (or 7393409 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1213133331222 its reverse (2221333313121), we get a palindrome (3434466644343).

The spelling of 1213133331222 in words is "one trillion, two hundred thirteen billion, one hundred thirty-three million, three hundred thirty-one thousand, two hundred twenty-two".