211211210222 has 16 divisors (see below), whose sum is σ = 325928435040. Its totient is φ = 102607089312.

The previous prime is 211211210173. The next prime is 211211210227. The reversal of 211211210222 is 222012112112.

It is a super-2 number, since 2×211211210222² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211210222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211210227) 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, 9661697 + ... + 9683532.

It is an arithmetic number, because the mean of its divisors is an integer number (20370527190).

Almost surely, 2^211211210222 is an apocalyptic number.

211211210222 is a deficient number, since it is larger than the sum of its proper divisors (114717224818).

211211210222 is a wasteful number, since it uses less digits than its factorization.

211211210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19345387.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211211210222 its reverse (222012112112), we get a palindrome (433223322334).

The spelling of 211211210222 in words is "two hundred eleven billion, two hundred eleven million, two hundred ten thousand, two hundred twenty-two".