1213133022 has 96 divisors (see below), whose sum is σ = 2935662912. Its totient is φ = 360087552.

The previous prime is 1213132993. The next prime is 1213133029. The reversal of 1213133022 is 2203313121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1213132986 and 1213133004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213133029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 681798 + ... + 683574.

It is an arithmetic number, because the mean of its divisors is an integer number (30579822).

Almost surely, 2^1213133022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213133022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467831456).

1213133022 is an abundant number, since it is smaller than the sum of its proper divisors (1722529890).

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

1213133022 is a wasteful number, since it uses less digits than its factorization.

1213133022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1213133022 is about 34830.0591730764. The cubic root of 1213133022 is about 1066.5211563011.

Adding to 1213133022 its reverse (2203313121), we get a palindrome (3416446143).

The spelling of 1213133022 in words is "one billion, two hundred thirteen million, one hundred thirty-three thousand, twenty-two".