2201101221020 has 72 divisors (see below), whose sum is σ = 5013316783440. Its totient is φ = 811400578560.

The previous prime is 2201101221013. The next prime is 2201101221061. The reversal of 2201101221020 is 201221011022.

2201101221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2201101220986 and 2201101221004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1566200 + ... + 2618240.

It is an arithmetic number, because the mean of its divisors is an integer number (69629399770).

Almost surely, 2^{2201101221020} is an apocalyptic number.

2201101221020 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 2201101221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2506658391720).

2201101221020 is an abundant number, since it is smaller than the sum of its proper divisors (2812215562420).

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

2201101221020 is a wasteful number, since it uses less digits than its factorization.

2201101221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052695 (or 1052680 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201101221020 its reverse (201221011022), we get a palindrome (2402322232042).

The spelling of 2201101221020 in words is "two trillion, two hundred one billion, one hundred one million, two hundred twenty-one thousand, twenty".