12252216251 has 8 divisors (see below), whose sum is σ = 14152292784. Its totient is φ = 10483179520.

The previous prime is 12252216247. The next prime is 12252216281. The reversal of 12252216251 is 15261225221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12252216251 - 2² = 12252216247 is a prime.

It is a super-2 number, since 2×12252216251² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12252216281) 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, 32759750 + ... + 32760123.

It is an arithmetic number, because the mean of its divisors is an integer number (1769036598).

Almost surely, 2^12252216251 is an apocalyptic number.

12252216251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12252216251 is a deficient number, since it is larger than the sum of its proper divisors (1900076533).

12252216251 is a wasteful number, since it uses less digits than its factorization.

12252216251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65519901.

The product of its digits is 4800, while the sum is 29.

The spelling of 12252216251 in words is "twelve billion, two hundred fifty-two million, two hundred sixteen thousand, two hundred fifty-one".