221102011200 has 168 divisors, whose sum is σ = 829027381312. Its totient is φ = 50537594880.

The previous prime is 221102011177. The next prime is 221102011201. The reversal of 221102011200 is 2110201122.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102011201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3256609 + ... + 3323808.

Almost surely, 2^221102011200 is an apocalyptic number.

221102011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221102011200 is an abundant number, since it is smaller than the sum of its proper divisors (607925370112).

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

221102011200 is a wasteful number, since it uses less digits than its factorization.

221102011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6580449 (or 6580434 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221102011200 its reverse (2110201122), we get a palindrome (223212212322).

The spelling of 221102011200 in words is "two hundred twenty-one billion, one hundred two million, eleven thousand, two hundred".