211222222210 has 16 divisors (see below), whose sum is σ = 380267524800. Its totient is φ = 84473883376.

The previous prime is 211222222199. The next prime is 211222222223. The reversal of 211222222210 is 12222222112.

It is a super-2 number, since 2×211222222210² (a number of 23 digits) contains 22 as substring.

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, 1816480 + ... + 1929259.

It is an arithmetic number, because the mean of its divisors is an integer number (23766720300).

Almost surely, 2^211222222210 is an apocalyptic number.

211222222210 is a deficient number, since it is larger than the sum of its proper divisors (169045302590).

211222222210 is a wasteful number, since it uses less digits than its factorization.

211222222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751385.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 211222222210 its reverse (12222222112), we get a palindrome (223444444322).

The spelling of 211222222210 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred ten".