211133042 has 16 divisors (see below), whose sum is σ = 322525152. Its totient is φ = 103642560.

The previous prime is 211133023. The next prime is 211133051. The reversal of 211133042 is 240331112.

It is a super-2 number, since 2×211133042² = 89154322848347528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211133042.

It is an unprimeable number.

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, 19817 + ... + 28547.

It is an arithmetic number, because the mean of its divisors is an integer number (20157822).

Almost surely, 2^211133042 is an apocalyptic number.

211133042 is a deficient number, since it is larger than the sum of its proper divisors (111392110).

211133042 is a wasteful number, since it uses less digits than its factorization.

211133042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8953.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 211133042 is about 14530.4178191819. The cubic root of 211133042 is about 595.4592805383.

Adding to 211133042 its reverse (240331112), we get a palindrome (451464154).

It can be divided in two parts, 2111 and 33042, that added together give a palindrome (35153).

The spelling of 211133042 in words is "two hundred eleven million, one hundred thirty-three thousand, forty-two".