1213132131222 has 96 divisors (see below), whose sum is σ = 2812652760960. Its totient is φ = 347597078400.

The previous prime is 1213132131191. The next prime is 1213132131269. The reversal of 1213132131222 is 2221312313121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1213132131192 and 1213132131201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7102273 + ... + 7271075.

It is an arithmetic number, because the mean of its divisors is an integer number (29298466260).

Almost surely, 2^{1213132131222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213132131222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406326380480).

1213132131222 is an abundant number, since it is smaller than the sum of its proper divisors (1599520629738).

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

1213132131222 is a wasteful number, since it uses less digits than its factorization.

1213132131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169370 (or 169359 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 1213132131222 its reverse (2221312313121), we get a palindrome (3434444444343).

The spelling of 1213132131222 in words is "one trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-two".