211010000220 has 72 divisors (see below), whose sum is σ = 644302582560. Its totient is φ = 55896681600.

The previous prime is 211010000213. The next prime is 211010000273. The reversal of 211010000220 is 22000010112.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3854535 + ... + 3908894.

It is an arithmetic number, because the mean of its divisors is an integer number (8948646980).

Almost surely, 2^211010000220 is an apocalyptic number.

211010000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010000220 is an abundant number, since it is smaller than the sum of its proper divisors (433292582340).

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

211010000220 is a wasteful number, since it uses less digits than its factorization.

211010000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763595 (or 7763590 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 211010000220 its reverse (22000010112), we get a palindrome (233010010332).

The spelling of 211010000220 in words is "two hundred eleven billion, ten million, two hundred twenty", and thus it is an aban number.