212111000122 has 48 divisors (see below), whose sum is σ = 377065683072. Its totient is φ = 87659167680.

The previous prime is 212111000117. The next prime is 212111000159. The reversal of 212111000122 is 221000111212.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9655483 + ... + 9677425.

It is an arithmetic number, because the mean of its divisors is an integer number (7855535064).

Almost surely, 2^212111000122 is an apocalyptic number.

212111000122 is a deficient number, since it is larger than the sum of its proper divisors (164954682950).

212111000122 is a wasteful number, since it uses less digits than its factorization.

212111000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22831 (or 22802 counting only the distinct ones).

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

Adding to 212111000122 its reverse (221000111212), we get a palindrome (433111111334).

The spelling of 212111000122 in words is "two hundred twelve billion, one hundred eleven million, one hundred twenty-two", and thus it is an aban number.