211212233234 has 8 divisors (see below), whose sum is σ = 316833163068. Its totient is φ = 105601178880.

The previous prime is 211212233209. The next prime is 211212233237. The reversal of 211212233234 is 432332212112.

It can be written as a sum of positive squares in 2 ways, for example, as 182075450209 + 29136783025 = 426703^2 + 170695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211212233234² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211212233237) 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, 2415167 + ... + 2501090.

Almost surely, 2^211212233234 is an apocalyptic number.

211212233234 is a deficient number, since it is larger than the sum of its proper divisors (105620929834).

211212233234 is a wasteful number, since it uses less digits than its factorization.

211212233234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937740.

The product of its digits is 3456, while the sum is 26.

Adding to 211212233234 its reverse (432332212112), we get a palindrome (643544445346).

The spelling of 211212233234 in words is "two hundred eleven billion, two hundred twelve million, two hundred thirty-three thousand, two hundred thirty-four".