2200021001220 has 288 divisors, whose sum is σ = 7378513309440. Its totient is φ = 488003927040.

The previous prime is 2200021001203. The next prime is 2200021001279. The reversal of 2200021001220 is 221001200022.

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 = 2200021001196 and 2200021001205.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42289425 + ... + 42341415.

It is an arithmetic number, because the mean of its divisors is an integer number (25619837880).

Almost surely, 2^{2200021001220} is an apocalyptic number.

2200021001220 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 2200021001220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3689256654720).

2200021001220 is an abundant number, since it is smaller than the sum of its proper divisors (5178492308220).

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

2200021001220 is a wasteful number, since it uses less digits than its factorization.

2200021001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52443 (or 52434 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2200021001220 its reverse (221001200022), we get a palindrome (2421022201242).

The spelling of 2200021001220 in words is "two trillion, two hundred billion, twenty-one million, one thousand, two hundred twenty".