12222121003 has 4 divisors (see below), whose sum is σ = 12252907600. Its totient is φ = 12191334408.

The previous prime is 12222121001. The next prime is 12222121031. The reversal of 12222121003 is 30012122221.

It is a happy number.

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 12222121003 - 2¹ = 12222121001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222121001) 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, 15392703 + ... + 15393496.

It is an arithmetic number, because the mean of its divisors is an integer number (3063226900).

Almost surely, 2^12222121003 is an apocalyptic number.

12222121003 is a deficient number, since it is larger than the sum of its proper divisors (30786597).

12222121003 is an equidigital number, since it uses as much as digits as its factorization.

12222121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30786596.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12222121003 its reverse (30012122221), we get a palindrome (42234243224).

It can be divided in two parts, 12222 and 121003, that added together give a square (133225 = 365²).

The spelling of 12222121003 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, three".