211000000011222 has 64 divisors (see below), whose sum is σ = 438901875465984. Its totient is φ = 67565601532800.

The previous prime is 211000000011217. The next prime is 211000000011223. The reversal of 211000000011222 is 222110000000112.

It is a junction number, because it is equal to n+sod(n) for n = 211000000011198 and 211000000011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000000011223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25841097 + ... + 33011547.

It is an arithmetic number, because the mean of its divisors is an integer number (6857841804156).

Almost surely, 2^{211000000011222} is an apocalyptic number.

211000000011222 is an abundant number, since it is smaller than the sum of its proper divisors (227901875454762).

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

211000000011222 is a wasteful number, since it uses less digits than its factorization.

211000000011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172173.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211000000011222 its reverse (222110000000112), we get a palindrome (433110000011334).

It can be divided in two parts, 2110000000112 and 22, that multiplied together give a palindrome (46420000002464).

The spelling of 211000000011222 in words is "two hundred eleven trillion, eleven thousand, two hundred twenty-two".