2110221200220 has 576 divisors, whose sum is σ = 7193322049536. Its totient is φ = 460352471040.

The previous prime is 2110221200183. The next prime is 2110221200221. The reversal of 2110221200220 is 220021220112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2110221200220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110221200221) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3442448634 + ... + 3442449246.

It is an arithmetic number, because the mean of its divisors is an integer number (12488406336).

Almost surely, 2^{2110221200220} is an apocalyptic number.

2110221200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2110221200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3596661024768).

2110221200220 is an abundant number, since it is smaller than the sum of its proper divisors (5083100849316).

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

2110221200220 is a wasteful number, since it uses less digits than its factorization.

2110221200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2110221200220 its reverse (220021220112), we get a palindrome (2330242420332).

The spelling of 2110221200220 in words is "two trillion, one hundred ten billion, two hundred twenty-one million, two hundred thousand, two hundred twenty".