212112222122 has 8 divisors (see below), whose sum is σ = 318628781472. Its totient is φ = 105902628300.

The previous prime is 212112222107. The next prime is 212112222137. The reversal of 212112222122 is 221222211212.

It is an interprime number because it is at equal distance from previous prime (212112222107) and next prime (212112222137).

It is a sphenic number, since it is the product of 3 distinct primes.

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 = 212112222094 and 212112222103.

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, 76739654 + ... + 76742417.

It is an arithmetic number, because the mean of its divisors is an integer number (39828597684).

Almost surely, 2^212112222122 is an apocalyptic number.

212112222122 is a deficient number, since it is larger than the sum of its proper divisors (106516559350).

212112222122 is a wasteful number, since it uses less digits than its factorization.

212112222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153482764.

The product of its digits is 256, while the sum is 20.

Adding to 212112222122 its reverse (221222211212), we get a palindrome (433334433334).

The spelling of 212112222122 in words is "two hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".