212222101112 has 24 divisors (see below), whose sum is σ = 462882389760. Its totient is φ = 90952328880.

The previous prime is 212222101019. The next prime is 212222101121. The reversal of 212222101112 is 211101222212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270691064 + ... + 270691847.

It is an arithmetic number, because the mean of its divisors is an integer number (19286766240).

Almost surely, 2^212222101112 is an apocalyptic number.

It is an amenable number.

212222101112 is an abundant number, since it is smaller than the sum of its proper divisors (250660288648).

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

212222101112 is a wasteful number, since it uses less digits than its factorization.

212222101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541382931 (or 541382920 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212222101112 its reverse (211101222212), we get a palindrome (423323323324).

The spelling of 212222101112 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred one thousand, one hundred twelve".