211013221222020 has 96 divisors (see below), whose sum is σ = 678442508706816. Its totient is φ = 48003007651200.

The previous prime is 211013221222019. The next prime is 211013221222043. The reversal of 211013221222020 is 20222122310112.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1190462166 + ... + 1190639405.

It is an arithmetic number, because the mean of its divisors is an integer number (7067109465696).

Almost surely, 2^{211013221222020} is an apocalyptic number.

211013221222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211013221222020 is an abundant number, since it is smaller than the sum of its proper divisors (467429287484796).

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

211013221222020 is a wasteful number, since it uses less digits than its factorization.

211013221222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381101801 (or 2381101799 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 211013221222020 its reverse (20222122310112), we get a palindrome (231235343532132).

The spelling of 211013221222020 in words is "two hundred eleven trillion, thirteen billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty".