211021001020200 has 96 divisors (see below), whose sum is σ = 747617260772160. Its totient is φ = 48233371660800.

The previous prime is 211021001020169. The next prime is 211021001020201. The reversal of 211021001020200 is 2020100120112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (211021001020201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25121543541 + ... + 25121551940.

It is an arithmetic number, because the mean of its divisors is an integer number (7787679799710).

Almost surely, 2^{211021001020200} is an apocalyptic number.

211021001020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211021001020200 is an abundant number, since it is smaller than the sum of its proper divisors (536596259751960).

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

211021001020200 is a wasteful number, since it uses less digits than its factorization.

211021001020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50243095507 (or 50243095498 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211021001020200 its reverse (2020100120112), we get a palindrome (213041101140312).

The spelling of 211021001020200 in words is "two hundred eleven trillion, twenty-one billion, one million, twenty thousand, two hundred".