211242633 has 16 divisors (see below), whose sum is σ = 322099200. Its totient is φ = 120632976.

The previous prime is 211242599. The next prime is 211242637. The reversal of 211242633 is 336242112.

211242633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211242633 - 2¹² = 211238537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211242637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54816 + ... + 58542.

It is an arithmetic number, because the mean of its divisors is an integer number (20131200).

Almost surely, 2^211242633 is an apocalyptic number.

It is an amenable number.

211242633 is a deficient number, since it is larger than the sum of its proper divisors (110856567).

211242633 is a wasteful number, since it uses less digits than its factorization.

211242633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436.

The product of its digits is 1728, while the sum is 24.

The square root of 211242633 is about 14534.1884190346. The cubic root of 211242633 is about 595.5622893487.

Adding to 211242633 its reverse (336242112), we get a palindrome (547484745).

The spelling of 211242633 in words is "two hundred eleven million, two hundred forty-two thousand, six hundred thirty-three".