211133302020 has 72 divisors (see below), whose sum is σ = 657746830104. Its totient is φ = 54780530688.

The previous prime is 211133302019. The next prime is 211133302031. The reversal of 211133302020 is 20203331112.

211133302020 is a `hidden beast` number, since 21 + 113 + 330 + 202 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29027981376 + 182105320644 = 170376^2 + 426738^2 .

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 = 211133301984 and 211133302002.

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, 15844189 + ... + 15857508.

Almost surely, 2^211133302020 is an apocalyptic number.

211133302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211133302020 is an abundant number, since it is smaller than the sum of its proper divisors (446613528084).

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

211133302020 is a wasteful number, since it uses less digits than its factorization.

211133302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31701749 (or 31701744 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 211133302020 its reverse (20203331112), we get a palindrome (231336633132).

The spelling of 211133302020 in words is "two hundred eleven billion, one hundred thirty-three million, three hundred two thousand, twenty".