211230201222 has 20 divisors (see below), whose sum is σ = 473312117916. Its totient is φ = 70410067020.

The previous prime is 211230201199. The next prime is 211230201241. The reversal of 211230201222 is 222102032112.

211230201222 is a `hidden beast` number, since 2 + 11 + 230 + 201 + 222 = 666.

It is a super-2 number, since 2×211230201222² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211230201195 and 211230201204.

It is a congruent number.

It is an unprimeable number.

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 in 9 ways as a sum of consecutive naturals, for example, 651944904 + ... + 651945227.

Almost surely, 2^211230201222 is an apocalyptic number.

211230201222 is an abundant number, since it is smaller than the sum of its proper divisors (262081916694).

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

211230201222 is a wasteful number, since it uses less digits than its factorization.

211230201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303890145 (or 1303890136 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 211230201222 its reverse (222102032112), we get a palindrome (433332233334).

The spelling of 211230201222 in words is "two hundred eleven billion, two hundred thirty million, two hundred one thousand, two hundred twenty-two".