222111022012 has 48 divisors (see below), whose sum is σ = 451324016640. Its totient is φ = 94523206400.

The previous prime is 222111021949. The next prime is 222111022087. The reversal of 222111022012 is 210220111222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634462 + ... + 920197.

It is an arithmetic number, because the mean of its divisors is an integer number (9402583680).

Almost surely, 2^222111022012 is an apocalyptic number.

222111022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222111022012 is an abundant number, since it is smaller than the sum of its proper divisors (229212994628).

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

222111022012 is a wasteful number, since it uses less digits than its factorization.

222111022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554882 (or 1554880 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222111022012 its reverse (210220111222), we get a palindrome (432331133234).

The spelling of 222111022012 in words is "two hundred twenty-two billion, one hundred eleven million, twenty-two thousand, twelve".