1021222111112 has 16 divisors (see below), whose sum is σ = 2188333095360. Its totient is φ = 437666619024.

The previous prime is 1021222111109. The next prime is 1021222111177. The reversal of 1021222111112 is 2111112221201.

1021222111112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9118054508 + ... + 9118054619.

It is an arithmetic number, because the mean of its divisors is an integer number (136770818460).

Almost surely, 2^{1021222111112} is an apocalyptic number.

It is an amenable number.

1021222111112 is an abundant number, since it is smaller than the sum of its proper divisors (1167110984248).

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

1021222111112 is a wasteful number, since it uses less digits than its factorization.

1021222111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18236109140 (or 18236109136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1021222111112 its reverse (2111112221201), we get a palindrome (3132334332313).

The spelling of 1021222111112 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twelve".