2201011111100 has 72 divisors (see below), whose sum is σ = 4836541691520. Its totient is φ = 869334102720.

The previous prime is 2201011111099. The next prime is 2201011111111. The reversal of 2201011111100 is 11111101022.

It is a super-2 number, since 2×2201011111100² (a number of 25 digits) contains 22 as substring.

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, 2949881 + ... + 3619919.

It is an arithmetic number, because the mean of its divisors is an integer number (67174190160).

Almost surely, 2^{2201011111100} is an apocalyptic number.

2201011111100 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 2201011111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2418270845760).

2201011111100 is an abundant number, since it is smaller than the sum of its proper divisors (2635530580420).

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

2201011111100 is a wasteful number, since it uses less digits than its factorization.

2201011111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670467 (or 670460 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2201011111100 its reverse (11111101022), we get a palindrome (2212122212122).

The spelling of 2201011111100 in words is "two trillion, two hundred one billion, eleven million, one hundred eleven thousand, one hundred".