211110020100 has 108 divisors (see below), whose sum is σ = 756243027904. Its totient is φ = 48253717440.

The previous prime is 211110020081. The next prime is 211110020117. The reversal of 211110020100 is 1020011112.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16748464 + ... + 16761063.

Almost surely, 2^211110020100 is an apocalyptic number.

211110020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211110020100 is an abundant number, since it is smaller than the sum of its proper divisors (545133007804).

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

211110020100 is a wasteful number, since it uses less digits than its factorization.

211110020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33509554 (or 33509544 counting only the distinct ones).

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

Adding to 211110020100 its reverse (1020011112), we get a palindrome (212130031212).

The spelling of 211110020100 in words is "two hundred eleven billion, one hundred ten million, twenty thousand, one hundred".