1212201010103 has 4 divisors (see below), whose sum is σ = 1212494312328. Its totient is φ = 1211907707880.

The previous prime is 1212201010093. The next prime is 1212201010117. The reversal of 1212201010103 is 3010101022121.

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 1212201010103 - 2³⁶ = 1143481533367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212201010303) 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 3 ways as a sum of consecutive naturals, for example, 146644913 + ... + 146653178.

It is an arithmetic number, because the mean of its divisors is an integer number (303123578082).

Almost surely, 2^{1212201010103} is an apocalyptic number.

1212201010103 is a deficient number, since it is larger than the sum of its proper divisors (293302225).

1212201010103 is an equidigital number, since it uses as much as digits as its factorization.

1212201010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293302224.

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

Adding to 1212201010103 its reverse (3010101022121), we get a palindrome (4222302032224).

The spelling of 1212201010103 in words is "one trillion, two hundred twelve billion, two hundred one million, ten thousand, one hundred three".