211022412 has 24 divisors (see below), whose sum is σ = 493125696. Its totient is φ = 70235088.

The previous prime is 211022407. The next prime is 211022419. The reversal of 211022412 is 214220112.

211022412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211022391 and 211022400.

It is not an unprimeable number, because it can be changed into a prime (211022419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4678 + ... + 21069.

It is an arithmetic number, because the mean of its divisors is an integer number (20546904).

Almost surely, 2^211022412 is an apocalyptic number.

It is an amenable number.

211022412 is an abundant number, since it is smaller than the sum of its proper divisors (282103284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211022412 is a wasteful number, since it uses less digits than its factorization.

211022412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26437 (or 26435 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 211022412 is about 14526.6104787042. The cubic root of 211022412 is about 595.3552589716.

Adding to 211022412 its reverse (214220112), we get a palindrome (425242524).

The spelling of 211022412 in words is "two hundred eleven million, twenty-two thousand, four hundred twelve".