192221864841 has 4 divisors (see below), whose sum is σ = 256295819792. Its totient is φ = 128147909892.

The previous prime is 192221864837. The next prime is 192221864851. The reversal of 192221864841 is 148468122291.

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 not a de Polignac number, because 192221864841 - 2² = 192221864837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192221864851) 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, 32036977471 + ... + 32036977476.

It is an arithmetic number, because the mean of its divisors is an integer number (64073954948).

Almost surely, 2^192221864841 is an apocalyptic number.

It is an amenable number.

192221864841 is a deficient number, since it is larger than the sum of its proper divisors (64073954951).

192221864841 is an equidigital number, since it uses as much as digits as its factorization.

192221864841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64073954950.

The product of its digits is 442368, while the sum is 48.

The spelling of 192221864841 in words is "one hundred ninety-two billion, two hundred twenty-one million, eight hundred sixty-four thousand, eight hundred forty-one".