211422201143 has 4 divisors (see below), whose sum is σ = 211425910488. Its totient is φ = 211418491800.

The previous prime is 211422201131. The next prime is 211422201161. The reversal of 211422201143 is 341102224112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211422201143 - 2⁴ = 211422201127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211422201163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767821 + ... + 1883622.

It is an arithmetic number, because the mean of its divisors is an integer number (52856477622).

Almost surely, 2^211422201143 is an apocalyptic number.

211422201143 is a deficient number, since it is larger than the sum of its proper divisors (3709345).

211422201143 is an equidigital number, since it uses as much as digits as its factorization.

211422201143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709344.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 211422201143 its reverse (341102224112), we get a palindrome (552524425255).

The spelling of 211422201143 in words is "two hundred eleven billion, four hundred twenty-two million, two hundred one thousand, one hundred forty-three".