211133031222 has 16 divisors (see below), whose sum is σ = 422279585280. Its totient is φ = 70375423272.

The previous prime is 211133031163. The next prime is 211133031223. The reversal of 211133031222 is 222130331112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211133031223) 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, 354522 + ... + 740237.

It is an arithmetic number, because the mean of its divisors is an integer number (26392474080).

Almost surely, 2^211133031222 is an apocalyptic number.

211133031222 is an abundant number, since it is smaller than the sum of its proper divisors (211146554058).

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

211133031222 is a wasteful number, since it uses less digits than its factorization.

211133031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126907.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211133031222 its reverse (222130331112), we get a palindrome (433263362334).

The spelling of 211133031222 in words is "two hundred eleven billion, one hundred thirty-three million, thirty-one thousand, two hundred twenty-two".