221112022012112 has 80 divisors (see below), whose sum is σ = 534567014342784. Its totient is φ = 86074595904000.

The previous prime is 221112022012103. The next prime is 221112022012157. The reversal of 221112022012112 is 211210220211122.

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, 74528939 + ... + 77438922.

Almost surely, 2^{221112022012112} is an apocalyptic number.

221112022012112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221112022012112 is an abundant number, since it is smaller than the sum of its proper divisors (313454992330672).

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

221112022012112 is a wasteful number, since it uses less digits than its factorization.

221112022012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151969068 (or 151969062 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221112022012112 its reverse (211210220211122), we get a palindrome (432322242223234).

The spelling of 221112022012112 in words is "two hundred twenty-one trillion, one hundred twelve billion, twenty-two million, twelve thousand, one hundred twelve".