211422211020 has 96 divisors (see below), whose sum is σ = 667022307840. Its totient is φ = 55585172160.

The previous prime is 211422211019. The next prime is 211422211087. The reversal of 211422211020 is 20112224112.

211422211020 is a `hidden beast` number, since 2 + 11 + 422 + 211 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211422210984 and 211422211002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2718862 + ... + 2795541.

It is an arithmetic number, because the mean of its divisors is an integer number (6948149040).

Almost surely, 2^211422211020 is an apocalyptic number.

211422211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211422211020 is an abundant number, since it is smaller than the sum of its proper divisors (455600096820).

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

211422211020 is a wasteful number, since it uses less digits than its factorization.

211422211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514492 (or 5514484 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211422211020 its reverse (20112224112), we get a palindrome (231534435132).

The spelling of 211422211020 in words is "two hundred eleven billion, four hundred twenty-two million, two hundred eleven thousand, twenty".