222112221210012 has 192 divisors, whose sum is σ = 619826524821504. Its totient is φ = 60576399037440.

The previous prime is 222112221209929. The next prime is 222112221210023. The reversal of 222112221210012 is 210012122211222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3087385962 + ... + 3087457902.

It is an arithmetic number, because the mean of its divisors is an integer number (3228263150112).

Almost surely, 2^{222112221210012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222112221210012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309913262410752).

222112221210012 is an abundant number, since it is smaller than the sum of its proper divisors (397714303611492).

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

222112221210012 is a wasteful number, since it uses less digits than its factorization.

222112221210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90788 (or 90786 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222112221210012 its reverse (210012122211222), we get a palindrome (432124343421234).

The spelling of 222112221210012 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, two hundred ten thousand, twelve".