221022120001112 has 128 divisors (see below), whose sum is σ = 448558444707840. Its totient is φ = 101700145797120.

The previous prime is 221022120001103. The next prime is 221022120001127. The reversal of 221022120001112 is 211100021220122.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49701396473 + ... + 49701400919.

It is an arithmetic number, because the mean of its divisors is an integer number (3504362849280).

Almost surely, 2^{221022120001112} is an apocalyptic number.

It is an amenable number.

221022120001112 is an abundant number, since it is smaller than the sum of its proper divisors (227536324706728).

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

221022120001112 is a wasteful number, since it uses less digits than its factorization.

221022120001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10201 (or 10197 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221022120001112 its reverse (211100021220122), we get a palindrome (432122141221234).

The spelling of 221022120001112 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twenty million, one thousand, one hundred twelve".