211231210022 has 32 divisors (see below), whose sum is σ = 364965883392. Its totient is φ = 89815785984.

The previous prime is 211231209991. The next prime is 211231210039. The reversal of 211231210022 is 220012132112.

211231210022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236503 + ... + 1396925.

It is an arithmetic number, because the mean of its divisors is an integer number (11405183856).

Almost surely, 2^211231210022 is an apocalyptic number.

211231210022 is a deficient number, since it is larger than the sum of its proper divisors (153734673370).

211231210022 is a wasteful number, since it uses less digits than its factorization.

211231210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161172.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211231210022 its reverse (220012132112), we get a palindrome (431243342134).

The spelling of 211231210022 in words is "two hundred eleven billion, two hundred thirty-one million, two hundred ten thousand, twenty-two".