422101243 has 4 divisors (see below), whose sum is σ = 422146480. Its totient is φ = 422056008.

The previous prime is 422101241. The next prime is 422101249. The reversal of 422101243 is 342101224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 422101243 - 2¹ = 422101241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422101243.

It is not an unprimeable number, because it can be changed into a prime (422101241) 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, 2880 + ... + 29197.

It is an arithmetic number, because the mean of its divisors is an integer number (105536620).

Almost surely, 2^422101243 is an apocalyptic number.

422101243 is a deficient number, since it is larger than the sum of its proper divisors (45237).

422101243 is a wasteful number, since it uses less digits than its factorization.

422101243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45236.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 422101243 is about 20545.1026524571. The cubic root of 422101243 is about 750.1340459667.

Subtracting from 422101243 its sum of digits (19), we obtain a palindrome (422101224).

Adding to 422101243 its reverse (342101224), we get a palindrome (764202467).

The spelling of 422101243 in words is "four hundred twenty-two million, one hundred one thousand, two hundred forty-three".