211420033 has 8 divisors (see below), whose sum is σ = 232547616. Its totient is φ = 192198820.

The previous prime is 211420009. The next prime is 211420043. The reversal of 211420033 is 330024112.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-211420033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211419989 and 211420016.

It is not an unprimeable number, because it can be changed into a prime (211420003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78091 + ... + 80752.

It is an arithmetic number, because the mean of its divisors is an integer number (29068452).

Almost surely, 2^211420033 is an apocalyptic number.

It is an amenable number.

211420033 is a deficient number, since it is larger than the sum of its proper divisors (21127583).

211420033 is an equidigital number, since it uses as much as digits as its factorization.

211420033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158876 (or 158854 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 211420033 is about 14540.2899902306. The cubic root of 211420033 is about 595.7289589692.

Adding to 211420033 its reverse (330024112), we get a palindrome (541444145).

The spelling of 211420033 in words is "two hundred eleven million, four hundred twenty thousand, thirty-three".