2113131222 has 24 divisors (see below), whose sum is σ = 4580221464. Its totient is φ = 704104704.

The previous prime is 2113131199. The next prime is 2113131257. The reversal of 2113131222 is 2221313112.

It is a super-2 number, since 2×2113131222² = 8930647122782426568, which contains 22 as substring.

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

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 = 2113131195 and 2113131204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28233 + ... + 70875.

It is an arithmetic number, because the mean of its divisors is an integer number (190842561).

Almost surely, 2^2113131222 is an apocalyptic number.

2113131222 is an abundant number, since it is smaller than the sum of its proper divisors (2467090242).

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

2113131222 is a wasteful number, since it uses less digits than its factorization.

2113131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45404 (or 45401 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2113131222 is about 45968.8070543494. The cubic root of 2113131222 is about 1283.2427588781.

Adding to 2113131222 its reverse (2221313112), we get a palindrome (4334444334).

The spelling of 2113131222 in words is "two billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-two".