211211021100222 has 96 divisors (see below), whose sum is σ = 546740393996160. Its totient is φ = 58078649828160.

The previous prime is 211211021100217. The next prime is 211211021100223. The reversal of 211211021100222 is 222001120112112.

211211021100222 is a `hidden beast` number, since 21 + 1 + 211 + 0 + 211 + 0 + 0 + 222 = 666.

It is a super-2 number, since 2×211211021100222² (a number of 29 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 = 211211021100195 and 211211021100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211021100223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 695234268 + ... + 695537999.

It is an arithmetic number, because the mean of its divisors is an integer number (5695212437460).

Almost surely, 2^{211211021100222} is an apocalyptic number.

211211021100222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211211021100222 is an abundant number, since it is smaller than the sum of its proper divisors (335529372895938).

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

211211021100222 is a wasteful number, since it uses less digits than its factorization.

211211021100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390772358 (or 1390772355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211211021100222 its reverse (222001120112112), we get a palindrome (433212141212334).

The spelling of 211211021100222 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-one million, one hundred thousand, two hundred twenty-two".