12211621603 has 8 divisors (see below), whose sum is σ = 12395888640. Its totient is φ = 12027413640.

The previous prime is 12211621601. The next prime is 12211621607. The reversal of 12211621603 is 30612611221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12211621603 - 2¹ = 12211621601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211621601) 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, 581358 + ... + 601996.

It is an arithmetic number, because the mean of its divisors is an integer number (1549486080).

Almost surely, 2^12211621603 is an apocalyptic number.

12211621603 is a deficient number, since it is larger than the sum of its proper divisors (184267037).

12211621603 is an equidigital number, since it uses as much as digits as its factorization.

12211621603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29537.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 12211621603 in words is "twelve billion, two hundred eleven million, six hundred twenty-one thousand, six hundred three".