211211512234 has 16 divisors (see below), whose sum is σ = 339699830400. Its totient is φ = 98135504064.

The previous prime is 211211512181. The next prime is 211211512243. The reversal of 211211512234 is 432215112112.

It is a super-2 number, since 2×211211512234² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211512199 and 211211512208.

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, 39314424 + ... + 39319795.

It is an arithmetic number, because the mean of its divisors is an integer number (21231239400).

Almost surely, 2^211211512234 is an apocalyptic number.

211211512234 is a deficient number, since it is larger than the sum of its proper divisors (128488318166).

211211512234 is a wasteful number, since it uses less digits than its factorization.

211211512234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78634317.

The product of its digits is 960, while the sum is 25.

Adding to 211211512234 its reverse (432215112112), we get a palindrome (643426624346).

The spelling of 211211512234 in words is "two hundred eleven billion, two hundred eleven million, five hundred twelve thousand, two hundred thirty-four".