12222850249 has 3 divisors (see below), whose sum is σ = 12222960807. Its totient is φ = 12222739692.

The previous prime is 12222850229. The next prime is 12222850253. The reversal of 12222850249 is 94205822221.

The square root of 12222850249 is 110557.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 659719225 + 11563131024 = 25685^2 + 107532^2 .

It is not a de Polignac number, because 12222850249 - 2¹¹ = 12222848201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222850229) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 55279 + ... + 165835.

It is an arithmetic number, because the mean of its divisors is an integer number (4074320269).

Almost surely, 2^12222850249 is an apocalyptic number.

12222850249 is the 110557-th square number.

12222850249 is the 55279-th centered octagonal number.

It is an amenable number.

12222850249 is a deficient number, since it is larger than the sum of its proper divisors (110558).

12222850249 is an frugal number, since it uses more digits than its factorization.

12222850249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221114 (or 110557 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 12222850249 in words is "twelve billion, two hundred twenty-two million, eight hundred fifty thousand, two hundred forty-nine".