211000110020100 has 54 divisors (see below), whose sum is σ = 661368122632490. Its totient is φ = 56266696005120.

The previous prime is 211000110020087. The next prime is 211000110020159. The reversal of 211000110020100 is 1020011000112.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 52256590392384 + 158743519627716 = 7228872^2 + 12599346^2 .

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

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, 117222282445 + ... + 117222284244.

Almost surely, 2^{211000110020100} is an apocalyptic number.

211000110020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211000110020100 is an abundant number, since it is smaller than the sum of its proper divisors (450368012612390).

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

211000110020100 is a wasteful number, since it uses less digits than its factorization.

211000110020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234444566709 (or 234444566699 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 211000110020100 its reverse (1020011000112), we get a palindrome (212020121020212).

The spelling of 211000110020100 in words is "two hundred eleven trillion, one hundred ten million, twenty thousand, one hundred".