221033323012112 has 40 divisors (see below), whose sum is σ = 472443176831640. Its totient is φ = 99527199851520.

The previous prime is 221033323012097. The next prime is 221033323012123. The reversal of 221033323012112 is 211210323330122.

It can be written as a sum of positive squares in 4 ways, for example, as 20168578011136 + 200864745000976 = 4490944^2 + 14172676^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12959262287 + ... + 12959279342.

It is an arithmetic number, because the mean of its divisors is an integer number (11811079420791).

Almost surely, 2^{221033323012112} is an apocalyptic number.

It is an amenable number.

221033323012112 is an abundant number, since it is smaller than the sum of its proper divisors (251409853819528).

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

221033323012112 is a wasteful number, since it uses less digits than its factorization.

221033323012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25918541691 (or 25918541685 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 221033323012112 its reverse (211210323330122), we get a palindrome (432243646342234).

The spelling of 221033323012112 in words is "two hundred twenty-one trillion, thirty-three billion, three hundred twenty-three million, twelve thousand, one hundred twelve".