211211002222 has 16 divisors (see below), whose sum is σ = 363808425600. Its totient is φ = 90952106040.

The previous prime is 211211002213. The next prime is 211211002271. The reversal of 211211002222 is 222200112112.

It is a happy number.

It is a super-2 number, since 2×211211002222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211002196 and 211211002205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252644322 + ... + 252645157.

It is an arithmetic number, because the mean of its divisors is an integer number (22738026600).

Almost surely, 2^211211002222 is an apocalyptic number.

211211002222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211211002222 is a deficient number, since it is larger than the sum of its proper divisors (152597423378).

211211002222 is a wasteful number, since it uses less digits than its factorization.

211211002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505289511.

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

Adding to 211211002222 its reverse (222200112112), we get a palindrome (433411114334).

The spelling of 211211002222 in words is "two hundred eleven billion, two hundred eleven million, two thousand, two hundred twenty-two".