212042234011 has 4 divisors (see below), whose sum is σ = 213918714072. Its totient is φ = 210165753952.

The previous prime is 212042233973. The next prime is 212042234023. The reversal of 212042234011 is 110432240212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212042234011 - 2¹¹ = 212042231963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212042264011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938239861 + ... + 938240086.

It is an arithmetic number, because the mean of its divisors is an integer number (53479678518).

Almost surely, 2^212042234011 is an apocalyptic number.

212042234011 is a deficient number, since it is larger than the sum of its proper divisors (1876480061).

212042234011 is a wasteful number, since it uses less digits than its factorization.

212042234011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876480060.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212042234011 its reverse (110432240212), we get a palindrome (322474474223).

The spelling of 212042234011 in words is "two hundred twelve billion, forty-two million, two hundred thirty-four thousand, eleven".