12221212021003 has 4 divisors (see below), whose sum is σ = 12224647844640. Its totient is φ = 12217776197368.

The previous prime is 12221212021001. The next prime is 12221212021049. The reversal of 12221212021003 is 30012021212221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221212021003 - 2¹ = 12221212021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221212021001) 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, 1717906483 + ... + 1717913596.

It is an arithmetic number, because the mean of its divisors is an integer number (3056161961160).

Almost surely, 2^{12221212021003} is an apocalyptic number.

12221212021003 is a deficient number, since it is larger than the sum of its proper divisors (3435823637).

12221212021003 is an equidigital number, since it uses as much as digits as its factorization.

12221212021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435823636.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12221212021003 its reverse (30012021212221), we get a palindrome (42233233233224).

The spelling of 12221212021003 in words is "twelve trillion, two hundred twenty-one billion, two hundred twelve million, twenty-one thousand, three".