42213331121 has 8 divisors (see below), whose sum is σ = 45480333864. Its totient is φ = 38949160320.

The previous prime is 42213331093. The next prime is 42213331213. The reversal of 42213331121 is 12113331224.

It can be written as a sum of positive squares in 4 ways, for example, as 1020163600 + 41193167521 = 31940^2 + 202961^2 .

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-42213331121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42213331021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676970 + ... + 736691.

It is an arithmetic number, because the mean of its divisors is an integer number (5685041733).

Almost surely, 2^42213331121 is an apocalyptic number.

It is an amenable number.

42213331121 is a deficient number, since it is larger than the sum of its proper divisors (3267002743).

42213331121 is a wasteful number, since it uses less digits than its factorization.

42213331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415971.

The product of its digits is 864, while the sum is 23.

Adding to 42213331121 its reverse (12113331224), we get a palindrome (54326662345).

The spelling of 42213331121 in words is "forty-two billion, two hundred thirteen million, three hundred thirty-one thousand, one hundred twenty-one".