211422101 has 8 divisors (see below), whose sum is σ = 242781600. Its totient is φ = 182085840.

The previous prime is 211422067. The next prime is 211422109. The reversal of 211422101 is 101224112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211422101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211422109) by changing a digit.

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, 505586 + ... + 506003.

It is an arithmetic number, because the mean of its divisors is an integer number (30347700).

Almost surely, 2^211422101 is an apocalyptic number.

It is an amenable number.

211422101 is a deficient number, since it is larger than the sum of its proper divisors (31359499).

211422101 is a wasteful number, since it uses less digits than its factorization.

211422101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011619.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 211422101 is about 14540.3611028062. The cubic root of 211422101 is about 595.7309013324.

Adding to 211422101 its reverse (101224112), we get a palindrome (312646213).

The spelling of 211422101 in words is "two hundred eleven million, four hundred twenty-two thousand, one hundred one".