211242220234 has 16 divisors (see below), whose sum is σ = 338704390080. Its totient is φ = 98564767840.

The previous prime is 211242220223. The next prime is 211242220247. The reversal of 211242220234 is 432022242112.

It is a junction number, because it is equal to n+sod(n) for n = 211242220199 and 211242220208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56000824 + ... + 56004595.

It is an arithmetic number, because the mean of its divisors is an integer number (21169024380).

Almost surely, 2^211242220234 is an apocalyptic number.

211242220234 is a deficient number, since it is larger than the sum of its proper divisors (127462169846).

211242220234 is a wasteful number, since it uses less digits than its factorization.

211242220234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112005485.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 211242220234 its reverse (432022242112), we get a palindrome (643264462346).

The spelling of 211242220234 in words is "two hundred eleven billion, two hundred forty-two million, two hundred twenty thousand, two hundred thirty-four".