42244201213 has 4 divisors (see below), whose sum is σ = 42679708540. Its totient is φ = 41808693888.

The previous prime is 42244201201. The next prime is 42244201243. The reversal of 42244201213 is 31210244224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13975495524 + 28268705689 = 118218^2 + 168133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42244201213 is a prime.

It is a super-2 number, since 2×42244201213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244201243) 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, 217753518 + ... + 217753711.

It is an arithmetic number, because the mean of its divisors is an integer number (10669927135).

Almost surely, 2^42244201213 is an apocalyptic number.

It is an amenable number.

42244201213 is a deficient number, since it is larger than the sum of its proper divisors (435507327).

42244201213 is an equidigital number, since it uses as much as digits as its factorization.

42244201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435507326.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42244201213 its reverse (31210244224), we get a palindrome (73454445437).

The spelling of 42244201213 in words is "forty-two billion, two hundred forty-four million, two hundred one thousand, two hundred thirteen".