1212211010003 has 16 divisors (see below), whose sum is σ = 1433530391040. Its totient is φ = 1003471229376.

The previous prime is 1212211009957. The next prime is 1212211010027. The reversal of 1212211010003 is 3000101122121.

It is not a de Polignac number, because 1212211010003 - 2²⁴ = 1212194232787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212211010003.

It is not an unprimeable number, because it can be changed into a prime (1212211010303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22598375 + ... + 22651952.

It is an arithmetic number, because the mean of its divisors is an integer number (89595649440).

Almost surely, 2^{1212211010003} is an apocalyptic number.

1212211010003 is a deficient number, since it is larger than the sum of its proper divisors (221319381037).

1212211010003 is an equidigital number, since it uses as much as digits as its factorization.

1212211010003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45250466.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1212211010003 its reverse (3000101122121), we get a palindrome (4212312132124).

The spelling of 1212211010003 in words is "one trillion, two hundred twelve billion, two hundred eleven million, ten thousand, three".