211122211000 has 32 divisors (see below), whose sum is σ = 494025976080. Its totient is φ = 84448884000.

The previous prime is 211122210919. The next prime is 211122211007. The reversal of 211122211000 is 112221112.

211122211000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122211007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105560106 + ... + 105562105.

Almost surely, 2^211122211000 is an apocalyptic number.

211122211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211122211000 is an abundant number, since it is smaller than the sum of its proper divisors (282903765080).

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

211122211000 is a wasteful number, since it uses less digits than its factorization.

211122211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211122232 (or 211122218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211122211000 its reverse (112221112), we get a palindrome (211234432112).

The spelling of 211122211000 in words is "two hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand".