42314211221 has 4 divisors (see below), whose sum is σ = 42316340352. Its totient is φ = 42312082092.

The previous prime is 42314211209. The next prime is 42314211229. The reversal of 42314211221 is 12211241324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42314211221 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 (42314211229) 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, 1034471 + ... + 1074596.

It is an arithmetic number, because the mean of its divisors is an integer number (10579085088).

Almost surely, 2^42314211221 is an apocalyptic number.

It is an amenable number.

42314211221 is a deficient number, since it is larger than the sum of its proper divisors (2129131).

42314211221 is a wasteful number, since it uses less digits than its factorization.

42314211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129130.

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

Adding to 42314211221 its reverse (12211241324), we get a palindrome (54525452545).

The spelling of 42314211221 in words is "forty-two billion, three hundred fourteen million, two hundred eleven thousand, two hundred twenty-one".