221002110000120 has 64 divisors (see below), whose sum is σ = 665757393697440. Its totient is φ = 58689357004800.

The previous prime is 221002110000083. The next prime is 221002110000127. The reversal of 221002110000120 is 21000011200122.

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 = 221002110000096 and 221002110000105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002110000127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3820892761 + ... + 3820950600.

Almost surely, 2^{221002110000120} is an apocalyptic number.

221002110000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002110000120 is an abundant number, since it is smaller than the sum of its proper divisors (444755283697320).

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

221002110000120 is a wasteful number, since it uses less digits than its factorization.

221002110000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7641843616 (or 7641843612 counting only the distinct ones).

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

Adding to 221002110000120 its reverse (21000011200122), we get a palindrome (242002121200242).

The spelling of 221002110000120 in words is "two hundred twenty-one trillion, two billion, one hundred ten million, one hundred twenty", and thus it is an aban number.