2113222212 has 72 divisors (see below), whose sum is σ = 5420574432. Its totient is φ = 694080000.

The previous prime is 2113222169. The next prime is 2113222219. The reversal of 2113222212 is 2122223112.

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 not an unprimeable number, because it can be changed into a prime (2113222219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 875287 + ... + 877697.

It is an arithmetic number, because the mean of its divisors is an integer number (75285756).

Almost surely, 2^2113222212 is an apocalyptic number.

It is an amenable number.

2113222212 is an abundant number, since it is smaller than the sum of its proper divisors (3307352220).

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

2113222212 is a wasteful number, since it uses less digits than its factorization.

2113222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2764 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2113222212 is about 45969.7967365530. The cubic root of 2113222212 is about 1283.2611771353.

Adding to 2113222212 its reverse (2122223112), we get a palindrome (4235445324).

The spelling of 2113222212 in words is "two billion, one hundred thirteen million, two hundred twenty-two thousand, two hundred twelve".