20002110002100 has 54 divisors (see below), whose sum is σ = 62695502576070. Its totient is φ = 5333896000320.

The previous prime is 20002110002089. The next prime is 20002110002123. The reversal of 20002110002100 is 120001120002.

It can be written as a sum of positive squares in 3 ways, for example, as 63991797156 + 19938118204944 = 252966^2 + 4465212^2 .

It is a super-2 number, since 2×20002110002100² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11112282435 + ... + 11112284234.

Almost surely, 2^{20002110002100} is an apocalyptic number.

20002110002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002110002100 is an abundant number, since it is smaller than the sum of its proper divisors (42693392573970).

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

20002110002100 is a wasteful number, since it uses less digits than its factorization.

20002110002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224566689 (or 22224566679 counting only the distinct ones).

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

Adding to 20002110002100 its reverse (120001120002), we get a palindrome (20122111122102).

The spelling of 20002110002100 in words is "twenty trillion, two billion, one hundred ten million, two thousand, one hundred".