1213112022 has 16 divisors (see below), whose sum is σ = 2427531120. Its totient is φ = 404152832.

The previous prime is 1213112011. The next prime is 1213112041. The reversal of 1213112022 is 2202113121.

It is a junction number, because it is equal to n+sod(n) for n = 1213111992 and 1213112010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42183 + ... + 64850.

It is an arithmetic number, because the mean of its divisors is an integer number (151720695).

Almost surely, 2^1213112022 is an apocalyptic number.

1213112022 is an abundant number, since it is smaller than the sum of its proper divisors (1214419098).

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

1213112022 is a wasteful number, since it uses less digits than its factorization.

1213112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108927.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1213112022 is about 34829.7577080289. The cubic root of 1213112022 is about 1066.5150022430.

Adding to 1213112022 its reverse (2202113121), we get a palindrome (3415225143).

The spelling of 1213112022 in words is "one billion, two hundred thirteen million, one hundred twelve thousand, twenty-two".