2112222222212 has 12 divisors (see below), whose sum is σ = 3709450335696. Its totient is φ = 1052379269160.

The previous prime is 2112222222191. The next prime is 2112222222233. The reversal of 2112222222212 is 2122222222112.

It is an interprime number because it is at equal distance from previous prime (2112222222191) and next prime (2112222222233).

It is a super-2 number, since 2×2112222222212² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932959214 + ... + 932961477.

It is an arithmetic number, because the mean of its divisors is an integer number (309120861308).

Almost surely, 2^{2112222222212} is an apocalyptic number.

It is an amenable number.

2112222222212 is a deficient number, since it is larger than the sum of its proper divisors (1597228113484).

2112222222212 is a wasteful number, since it uses less digits than its factorization.

2112222222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865920978 (or 1865920976 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

Adding to 2112222222212 its reverse (2122222222112), we get a palindrome (4234444444324).

The spelling of 2112222222212 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".