2112212111122 has 4 divisors (see below), whose sum is σ = 3168318166686. Its totient is φ = 1056106055560.

The previous prime is 2112212111069. The next prime is 2112212111161. The reversal of 2112212111122 is 2211112122112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1744383204001 + 367828907121 = 1320751^2 + 606489^2 .

It is a super-2 number, since 2×2112212111122² (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 a self number, because there is not a number n which added to its sum of digits gives 2112212111122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528053027779 + ... + 528053027782.

Almost surely, 2^{2112212111122} is an apocalyptic number.

2112212111122 is a deficient number, since it is larger than the sum of its proper divisors (1056106055564).

2112212111122 is a wasteful number, since it uses less digits than its factorization.

2112212111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056106055563.

The product of its digits is 64, while the sum is 19.

Adding to 2112212111122 its reverse (2211112122112), we get a palindrome (4323324233234).

The spelling of 2112212111122 in words is "two trillion, one hundred twelve billion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-two".