211240122 has 16 divisors (see below), whose sum is σ = 424127232. Its totient is φ = 70138880.

The previous prime is 211240121. The next prime is 211240151. The reversal of 211240122 is 221042112.

211240122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (211240121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66954 + ... + 70037.

It is an arithmetic number, because the mean of its divisors is an integer number (26507952).

Almost surely, 2^211240122 is an apocalyptic number.

211240122 is an abundant number, since it is smaller than the sum of its proper divisors (212887110).

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

211240122 is a wasteful number, since it uses less digits than its factorization.

211240122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137253.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 211240122 is about 14534.1020362457. The cubic root of 211240122 is about 595.5599295617.

Adding to 211240122 its reverse (221042112), we get a palindrome (432282234).

The spelling of 211240122 in words is "two hundred eleven million, two hundred forty thousand, one hundred twenty-two".