211102010220 has 24 divisors (see below), whose sum is σ = 591085628784. Its totient is φ = 56293869376.

The previous prime is 211102010209. The next prime is 211102010239. The reversal of 211102010220 is 22010201112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 211102010196 and 211102010205.

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 7 ways as a sum of consecutive naturals, for example, 1759183359 + ... + 1759183478.

It is an arithmetic number, because the mean of its divisors is an integer number (24628567866).

Almost surely, 2^211102010220 is an apocalyptic number.

211102010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211102010220 is an abundant number, since it is smaller than the sum of its proper divisors (379983618564).

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

211102010220 is a wasteful number, since it uses less digits than its factorization.

211102010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518366849 (or 3518366847 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211102010220 its reverse (22010201112), we get a palindrome (233112211332).

The spelling of 211102010220 in words is "two hundred eleven billion, one hundred two million, ten thousand, two hundred twenty".