12212250151 has 4 divisors (see below), whose sum is σ = 12212865000. Its totient is φ = 12211635304.

The previous prime is 12212250139. The next prime is 12212250157. The reversal of 12212250151 is 15105221221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15105221221 = 67 ⋅225451063.

It is a cyclic number.

It is not a de Polignac number, because 12212250151 - 2¹⁷ = 12212119079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212250157) 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, 276601 + ... + 317698.

It is an arithmetic number, because the mean of its divisors is an integer number (3053216250).

Almost surely, 2^12212250151 is an apocalyptic number.

12212250151 is a deficient number, since it is larger than the sum of its proper divisors (614849).

12212250151 is an equidigital number, since it uses as much as digits as its factorization.

12212250151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614848.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 12212250151 its reverse (15105221221), we get a palindrome (27317471372).

The spelling of 12212250151 in words is "twelve billion, two hundred twelve million, two hundred fifty thousand, one hundred fifty-one".