1212001212103 has 6 divisors (see below), whose sum is σ = 1332199679552. Its totient is φ = 1101819283620.

The previous prime is 1212001212067. The next prime is 1212001212109. The reversal of 1212001212103 is 3012121002121.

It is not a de Polignac number, because 1212001212103 - 2⁹ = 1212001211591 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 (1212001212109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5008269351 + ... + 5008269592.

Almost surely, 2^{1212001212103} is an apocalyptic number.

1212001212103 is a deficient number, since it is larger than the sum of its proper divisors (120198467449).

1212001212103 is a wasteful number, since it uses less digits than its factorization.

1212001212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016538965 (or 10016538954 counting only the distinct ones).

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

Adding to 1212001212103 its reverse (3012121002121), we get a palindrome (4224122214224).

The spelling of 1212001212103 in words is "one trillion, two hundred twelve billion, one million, two hundred twelve thousand, one hundred three".