221112112211000 has 64 divisors (see below), whose sum is σ = 534092740796160. Its totient is φ = 85591785360000.

The previous prime is 221112112210999. The next prime is 221112112211017. The reversal of 221112112211000 is 112211211122.

It is a self number, because there is not a number n which added to its sum of digits gives 221112112211000.

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 15 ways as a sum of consecutive naturals, for example, 3566293391 + ... + 3566355390.

It is an arithmetic number, because the mean of its divisors is an integer number (8345199074940).

Almost surely, 2^{221112112211000} is an apocalyptic number.

221112112211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221112112211000 is an abundant number, since it is smaller than the sum of its proper divisors (312980628585160).

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

221112112211000 is a wasteful number, since it uses less digits than its factorization.

221112112211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132648833 (or 7132648819 counting only the distinct ones).

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

Adding to 221112112211000 its reverse (112211211122), we get a palindrome (221224323422122).

The spelling of 221112112211000 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred twelve million, two hundred eleven thousand".