159911212322 has 4 divisors (see below), whose sum is σ = 239866818486. Its totient is φ = 79955606160.

The previous prime is 159911212313. The next prime is 159911212367. The reversal of 159911212322 is 223212119951.

It is a Cunningham number, because it is equal to 399889²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 159911212321 + 1 = 399889^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39977803079 + ... + 39977803082.

Almost surely, 2^159911212322 is an apocalyptic number.

159911212322 is a deficient number, since it is larger than the sum of its proper divisors (79955606164).

159911212322 is an equidigital number, since it uses as much as digits as its factorization.

159911212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79955606163.

The product of its digits is 19440, while the sum is 38.

The spelling of 159911212322 in words is "one hundred fifty-nine billion, nine hundred eleven million, two hundred twelve thousand, three hundred twenty-two".