2200011100020 has 144 divisors (see below), whose sum is σ = 6855625865088. Its totient is φ = 570655653120.

The previous prime is 2200011099961. The next prime is 2200011100051. The reversal of 2200011100020 is 200011100022.

It is a super-2 number, since 2×2200011100020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2200011099975 and 2200011100011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25044375 + ... + 25132065.

It is an arithmetic number, because the mean of its divisors is an integer number (47608512952).

Almost surely, 2^{2200011100020} is an apocalyptic number.

2200011100020 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 2200011100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3427812932544).

2200011100020 is an abundant number, since it is smaller than the sum of its proper divisors (4655614765068).

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

2200011100020 is a wasteful number, since it uses less digits than its factorization.

2200011100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91510 (or 91505 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2200011100020 its reverse (200011100022), we get a palindrome (2400022200042).

The spelling of 2200011100020 in words is "two trillion, two hundred billion, eleven million, one hundred thousand, twenty".