42321221211 has 8 divisors (see below), whose sum is σ = 56452870224. Its totient is φ = 28201859840.

The previous prime is 42321221197. The next prime is 42321221237. The reversal of 42321221211 is 11212212324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42321221211 - 2⁵ = 42321221179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42321221291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3063870 + ... + 3077651.

It is an arithmetic number, because the mean of its divisors is an integer number (7056608778).

Almost surely, 2^42321221211 is an apocalyptic number.

42321221211 is a deficient number, since it is larger than the sum of its proper divisors (14131649013).

42321221211 is a wasteful number, since it uses less digits than its factorization.

42321221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143821.

The product of its digits is 384, while the sum is 21.

Adding to 42321221211 its reverse (11212212324), we get a palindrome (53533433535).

The spelling of 42321221211 in words is "forty-two billion, three hundred twenty-one million, two hundred twenty-one thousand, two hundred eleven".