20001111002200 has 24 divisors (see below), whose sum is σ = 46502583080580. Its totient is φ = 8000444400800.

The previous prime is 20001111002189. The next prime is 20001111002209. The reversal of 20001111002200 is 220011110002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001111002209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50002777306 + ... + 50002777705.

Almost surely, 2^{20001111002200} is an apocalyptic number.

20001111002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001111002200 is an abundant number, since it is smaller than the sum of its proper divisors (26501472078380).

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

20001111002200 is a wasteful number, since it uses less digits than its factorization.

20001111002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100005555027 (or 100005555018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20001111002200 its reverse (220011110002), we get a palindrome (20221122112202).

The spelling of 20001111002200 in words is "twenty trillion, one billion, one hundred eleven million, two thousand, two hundred".