20000211002100 has 432 divisors, whose sum is σ = 75147163273728. Its totient is φ = 4353284321280.

The previous prime is 20000211002089. The next prime is 20000211002153. The reversal of 20000211002100 is 120011200002.

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 143 ways as a sum of consecutive naturals, for example, 10042924 + ... + 11868476.

Almost surely, 2^{20000211002100} is an apocalyptic number.

20000211002100 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 20000211002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37573581636864).

20000211002100 is an abundant number, since it is smaller than the sum of its proper divisors (55146952271628).

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

20000211002100 is a wasteful number, since it uses less digits than its factorization.

20000211002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825664 (or 1825654 counting only the distinct ones).

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

Adding to 20000211002100 its reverse (120011200002), we get a palindrome (20120222202102).

The spelling of 20000211002100 in words is "twenty trillion, two hundred eleven million, two thousand, one hundred".