12221021212003 has 8 divisors (see below), whose sum is σ = 12864791344400. Its totient is φ = 11577306928608.

The previous prime is 12221021211991. The next prime is 12221021212007. The reversal of 12221021212003 is 30021212012221.

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 12221021212003 - 2³³ = 12212431277411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221021212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13512708 + ... + 14388721.

It is an arithmetic number, because the mean of its divisors is an integer number (1608098918050).

Almost surely, 2^{12221021212003} is an apocalyptic number.

12221021212003 is a deficient number, since it is larger than the sum of its proper divisors (643770132397).

12221021212003 is a wasteful number, since it uses less digits than its factorization.

12221021212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27924501.

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

Adding to 12221021212003 its reverse (30021212012221), we get a palindrome (42242233224224).

The spelling of 12221021212003 in words is "twelve trillion, two hundred twenty-one billion, twenty-one million, two hundred twelve thousand, three".