211242022 has 16 divisors (see below), whose sum is σ = 322585200. Its totient is φ = 103723488.

The previous prime is 211242013. The next prime is 211242037. The reversal of 211242022 is 220242112.

It is a junction number, because it is equal to n+sod(n) for n = 211241987 and 211242005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44508 + ... + 49024.

It is an arithmetic number, because the mean of its divisors is an integer number (20161575).

Almost surely, 2^211242022 is an apocalyptic number.

211242022 is a deficient number, since it is larger than the sum of its proper divisors (111343178).

211242022 is a wasteful number, since it uses less digits than its factorization.

211242022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 211242022 is about 14534.1673996139. The cubic root of 211242022 is about 595.5617151450.

Adding to 211242022 its reverse (220242112), we get a palindrome (431484134).

The spelling of 211242022 in words is "two hundred eleven million, two hundred forty-two thousand, twenty-two".