2201122001220 has 48 divisors (see below), whose sum is σ = 6487517480640. Its totient is φ = 556072926336.

The previous prime is 2201122001191. The next prime is 2201122001233. The reversal of 2201122001220 is 221002211022.

It is a super-3 number, since 3×2201122001220³ (a number of 38 digits) contains 333 as substring.

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 2201122001220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965403247 + ... + 965405526.

It is an arithmetic number, because the mean of its divisors is an integer number (135156614180).

Almost surely, 2^{2201122001220} is an apocalyptic number.

2201122001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201122001220 is an abundant number, since it is smaller than the sum of its proper divisors (4286395479420).

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

2201122001220 is a wasteful number, since it uses less digits than its factorization.

2201122001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930808804 (or 1930808802 counting only the distinct ones).

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

Adding to 2201122001220 its reverse (221002211022), we get a palindrome (2422124212242).

The spelling of 2201122001220 in words is "two trillion, two hundred one billion, one hundred twenty-two million, one thousand, two hundred twenty".