111210021222 has 192 divisors, whose sum is σ = 251049646080. Its totient is φ = 32731776000.

The previous prime is 111210021203. The next prime is 111210021239. The reversal of 111210021222 is 222120012111.

111210021222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 410368947 + ... + 410369217.

It is an arithmetic number, because the mean of its divisors is an integer number (1307550240).

Almost surely, 2^111210021222 is an apocalyptic number.

111210021222 is an abundant number, since it is smaller than the sum of its proper divisors (139839624858).

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

111210021222 is a wasteful number, since it uses less digits than its factorization.

111210021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111210021222 its reverse (222120012111), we get a palindrome (333330033333).

The spelling of 111210021222 in words is "one hundred eleven billion, two hundred ten million, twenty-one thousand, two hundred twenty-two".