212012121111003 has 20 divisors (see below), whose sum is σ = 317005732038160. Its totient is φ = 141209195668272.

The previous prime is 212012121110989. The next prime is 212012121111053. The reversal of 212012121111003 is 300111121210212.

It is a happy number.

It is not a de Polignac number, because 212012121111003 - 2⁴ = 212012121110987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012121111053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1224157375 + ... + 1224330552.

It is an arithmetic number, because the mean of its divisors is an integer number (15850286601908).

Almost surely, 2^{212012121111003} is an apocalyptic number.

212012121111003 is a deficient number, since it is larger than the sum of its proper divisors (104993610927157).

212012121111003 is a wasteful number, since it uses less digits than its factorization.

212012121111003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448489008 (or 2448488999 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 212012121111003 its reverse (300111121210212), we get a palindrome (512123242321215).

The spelling of 212012121111003 in words is "two hundred twelve trillion, twelve billion, one hundred twenty-one million, one hundred eleven thousand, three".