211210212022 has 4 divisors (see below), whose sum is σ = 316815318036. Its totient is φ = 105605106010.

The previous prime is 211210212019. The next prime is 211210212029. The reversal of 211210212022 is 220212012112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 211210211987 and 211210212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52802553004 + ... + 52802553007.

It is an arithmetic number, because the mean of its divisors is an integer number (79203829509).

Almost surely, 2^211210212022 is an apocalyptic number.

211210212022 is a deficient number, since it is larger than the sum of its proper divisors (105605106014).

211210212022 is a wasteful number, since it uses less digits than its factorization.

211210212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105605106013.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211210212022 its reverse (220212012112), we get a palindrome (431422224134).

The spelling of 211210212022 in words is "two hundred eleven billion, two hundred ten million, two hundred twelve thousand, twenty-two".