2201101200020 has 96 divisors (see below), whose sum is σ = 5049563500800. Its totient is φ = 802748620800.

The previous prime is 2201101199951. The next prime is 2201101200037. The reversal of 2201101200020 is 200021011022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2201101199974 and 2201101200010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106100 + ... + 3748340.

It is an arithmetic number, because the mean of its divisors is an integer number (52599619800).

Almost surely, 2^{2201101200020} is an apocalyptic number.

2201101200020 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 2201101200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2524781750400).

2201101200020 is an abundant number, since it is smaller than the sum of its proper divisors (2848462300780).

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

2201101200020 is a wasteful number, since it uses less digits than its factorization.

2201101200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642609 (or 642607 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2201101200020 its reverse (200021011022), we get a palindrome (2401122211042).

The spelling of 2201101200020 in words is "two trillion, two hundred one billion, one hundred one million, two hundred thousand, twenty".