211442122 has 16 divisors (see below), whose sum is σ = 325635552. Its totient is φ = 102927760.

The previous prime is 211442113. The next prime is 211442131. The reversal of 211442122 is 221244112.

211442122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211442113) and next prime (211442131).

It is a self number, because there is not a number n which added to its sum of digits gives 211442122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6273 + ... + 21499.

It is an arithmetic number, because the mean of its divisors is an integer number (20352222).

Almost surely, 2^211442122 is an apocalyptic number.

211442122 is a deficient number, since it is larger than the sum of its proper divisors (114193430).

211442122 is a wasteful number, since it uses less digits than its factorization.

211442122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15413.

The product of its digits is 256, while the sum is 19.

The square root of 211442122 is about 14541.0495494651. The cubic root of 211442122 is about 595.7497053456.

Adding to 211442122 its reverse (221244112), we get a palindrome (432686234).

The spelling of 211442122 in words is "two hundred eleven million, four hundred forty-two thousand, one hundred twenty-two".