1212201211003 has 16 divisors (see below), whose sum is σ = 1294551210240. Its totient is φ = 1131720660000.

The previous prime is 1212201210977. The next prime is 1212201211043. The reversal of 1212201211003 is 3001121022121.

It is a cyclic number.

It is not a de Polignac number, because 1212201211003 - 2⁹ = 1212201210491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212201211043) 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, 2837001 + ... + 3236197.

It is an arithmetic number, because the mean of its divisors is an integer number (80909450640).

Almost surely, 2^{1212201211003} is an apocalyptic number.

1212201211003 is a deficient number, since it is larger than the sum of its proper divisors (82349999237).

1212201211003 is a wasteful number, since it uses less digits than its factorization.

1212201211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401538.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212201211003 its reverse (3001121022121), we get a palindrome (4213322233124).

The spelling of 1212201211003 in words is "one trillion, two hundred twelve billion, two hundred one million, two hundred eleven thousand, three".