42320221211 has 4 divisors (see below), whose sum is σ = 42320978832. Its totient is φ = 42319463592.

The previous prime is 42320221201. The next prime is 42320221247. The reversal of 42320221211 is 11212202324.

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 42320221211 - 2¹⁴ = 42320204827 is a prime.

It is a super-2 number, since 2×42320221211² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42320221201) 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, 287720 + ... + 409173.

It is an arithmetic number, because the mean of its divisors is an integer number (10580244708).

Almost surely, 2^42320221211 is an apocalyptic number.

42320221211 is a deficient number, since it is larger than the sum of its proper divisors (757621).

42320221211 is an equidigital number, since it uses as much as digits as its factorization.

42320221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757620.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 42320221211 its reverse (11212202324), we get a palindrome (53532423535).

The spelling of 42320221211 in words is "forty-two billion, three hundred twenty million, two hundred twenty-one thousand, two hundred eleven".