211211214222 has 24 divisors (see below), whose sum is σ = 437491015416. Its totient is φ = 67976021344.

The previous prime is 211211214217. The next prime is 211211214223. The reversal of 211211214222 is 222412112112.

It is a super-2 number, since 2×211211214222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211214223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20923533 + ... + 20933624.

It is an arithmetic number, because the mean of its divisors is an integer number (18228792309).

Almost surely, 2^211211214222 is an apocalyptic number.

211211214222 is an abundant number, since it is smaller than the sum of its proper divisors (226279801194).

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

211211214222 is a wasteful number, since it uses less digits than its factorization.

211211214222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41857220 (or 41857191 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 211211214222 its reverse (222412112112), we get a palindrome (433623326334).

The spelling of 211211214222 in words is "two hundred eleven billion, two hundred eleven million, two hundred fourteen thousand, two hundred twenty-two".