187222426113 has 8 divisors (see below), whose sum is σ = 264314013408. Its totient is φ = 117472894784.

The previous prime is 187222426093. The next prime is 187222426121. The reversal of 187222426113 is 311624222781.

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 187222426113 - 2⁶ = 187222426049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (187222425113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835513931 + ... + 1835514032.

It is an arithmetic number, because the mean of its divisors is an integer number (33039251676).

Almost surely, 2^187222426113 is an apocalyptic number.

It is an amenable number.

187222426113 is a deficient number, since it is larger than the sum of its proper divisors (77091587295).

187222426113 is a wasteful number, since it uses less digits than its factorization.

187222426113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671027983.

The product of its digits is 64512, while the sum is 39.

Adding to 187222426113 its reverse (311624222781), we get a palindrome (498846648894).

The spelling of 187222426113 in words is "one hundred eighty-seven billion, two hundred twenty-two million, four hundred twenty-six thousand, one hundred thirteen".