221102000100120 has 128 divisors (see below), whose sum is σ = 664245050826240. Its totient is φ = 58877110010880.

The previous prime is 221102000100109. The next prime is 221102000100127. The reversal of 221102000100120 is 21001000201122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221102000100096 and 221102000100105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102000100127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297005407 + ... + 297748913.

It is an arithmetic number, because the mean of its divisors is an integer number (5189414459580).

Almost surely, 2^{221102000100120} is an apocalyptic number.

221102000100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221102000100120 is an abundant number, since it is smaller than the sum of its proper divisors (443143050726120).

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

221102000100120 is a wasteful number, since it uses less digits than its factorization.

221102000100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747025 (or 747021 counting only the distinct ones).

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

Adding to 221102000100120 its reverse (21001000201122), we get a palindrome (242103000301242).

The spelling of 221102000100120 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred thousand, one hundred twenty".