211010110020 has 96 divisors (see below), whose sum is σ = 656599856640. Its totient is φ = 56258737920.

The previous prime is 211010109967. The next prime is 211010110027. The reversal of 211010110020 is 20011010112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 211010109984 and 211010110011.

It is not an unprimeable number, because it can be changed into a prime (211010110027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3067200 + ... + 3135240.

It is an arithmetic number, because the mean of its divisors is an integer number (6839581840).

Almost surely, 2^211010110020 is an apocalyptic number.

211010110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010110020 is an abundant number, since it is smaller than the sum of its proper divisors (445589746620).

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

211010110020 is a wasteful number, since it uses less digits than its factorization.

211010110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73802 (or 73794 counting only the distinct ones).

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

Adding to 211010110020 its reverse (20011010112), we get a palindrome (231021120132).

The spelling of 211010110020 in words is "two hundred eleven billion, ten million, one hundred ten thousand, twenty".