142221606233 has 4 divisors (see below), whose sum is σ = 162538978560. Its totient is φ = 121904233908.

The previous prime is 142221606199. The next prime is 142221606253. The reversal of 142221606233 is 332606122241.

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 not a de Polignac number, because 142221606233 - 2¹⁴ = 142221589849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142221606233.

It is not an unprimeable number, because it can be changed into a prime (142221606253) 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, 10158686153 + ... + 10158686166.

It is an arithmetic number, because the mean of its divisors is an integer number (40634744640).

Almost surely, 2^142221606233 is an apocalyptic number.

It is an amenable number.

142221606233 is a deficient number, since it is larger than the sum of its proper divisors (20317372327).

142221606233 is an equidigital number, since it uses as much as digits as its factorization.

142221606233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20317372326.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 142221606233 its reverse (332606122241), we get a palindrome (474827728474).

The spelling of 142221606233 in words is "one hundred forty-two billion, two hundred twenty-one million, six hundred six thousand, two hundred thirty-three".