211133222020 has 24 divisors (see below), whose sum is σ = 506719733184. Its totient is φ = 72388533216.

The previous prime is 211133221993. The next prime is 211133222029. The reversal of 211133222020 is 20222331112.

It is a super-2 number, since 2×211133222020² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211133222029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754047082 + ... + 754047361.

It is an arithmetic number, because the mean of its divisors is an integer number (21113322216).

Almost surely, 2^211133222020 is an apocalyptic number.

211133222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211133222020 is an abundant number, since it is smaller than the sum of its proper divisors (295586511164).

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

211133222020 is a wasteful number, since it uses less digits than its factorization.

211133222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508094459 (or 1508094457 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 211133222020 its reverse (20222331112), we get a palindrome (231355553132).

The spelling of 211133222020 in words is "two hundred eleven billion, one hundred thirty-three million, two hundred twenty-two thousand, twenty".