211021102100 has 72 divisors (see below), whose sum is σ = 459478174848. Its totient is φ = 84120854400.

The previous prime is 211021102099. The next prime is 211021102133. The reversal of 211021102100 is 1201120112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72689249 + ... + 72692151.

Almost surely, 2^211021102100 is an apocalyptic number.

211021102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211021102100 is an abundant number, since it is smaller than the sum of its proper divisors (248457072748).

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

211021102100 is a wasteful number, since it uses less digits than its factorization.

211021102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145 (or 5138 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211021102100 its reverse (1201120112), we get a palindrome (212222222212).

The spelling of 211021102100 in words is "two hundred eleven billion, twenty-one million, one hundred two thousand, one hundred".