2201021012220 has 24 divisors (see below), whose sum is σ = 6162858834384. Its totient is φ = 586938936576.

The previous prime is 2201021012167. The next prime is 2201021012221. The reversal of 2201021012220 is 222101201022.

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 2201021012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201021012221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18341841709 + ... + 18341841828.

It is an arithmetic number, because the mean of its divisors is an integer number (256785784766).

Almost surely, 2^{2201021012220} is an apocalyptic number.

2201021012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201021012220 is an abundant number, since it is smaller than the sum of its proper divisors (3961837822164).

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

2201021012220 is a wasteful number, since it uses less digits than its factorization.

2201021012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36683683549 (or 36683683547 counting only the distinct ones).

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

Adding to 2201021012220 its reverse (222101201022), we get a palindrome (2423122213242).

The spelling of 2201021012220 in words is "two trillion, two hundred one billion, twenty-one million, twelve thousand, two hundred twenty".