12150211394 has 4 divisors (see below), whose sum is σ = 18225317094. Its totient is φ = 6075105696.

The previous prime is 12150211319. The next prime is 12150211399. The reversal of 12150211394 is 49311205121.

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., 12097140169 + 53071225 = 109987^2 + 7285^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12150211399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3037552847 + ... + 3037552850.

Almost surely, 2^12150211394 is an apocalyptic number.

12150211394 is a deficient number, since it is larger than the sum of its proper divisors (6075105700).

12150211394 is an equidigital number, since it uses as much as digits as its factorization.

12150211394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075105699.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 12150211394 in words is "twelve billion, one hundred fifty million, two hundred eleven thousand, three hundred ninety-four".