1212301003121 has 16 divisors (see below), whose sum is σ = 1390833005184. Its totient is φ = 1046759272704.

The previous prime is 1212301003091. The next prime is 1212301003171. The reversal of 1212301003121 is 1213001032121.

It is a cyclic number.

It is not a de Polignac number, because 1212301003121 - 2¹⁰ = 1212301002097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 1212301003121.

It is not an unprimeable number, because it can be changed into a prime (1212301003171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16790741 + ... + 16862786.

It is an arithmetic number, because the mean of its divisors is an integer number (86927062824).

Almost surely, 2^{1212301003121} is an apocalyptic number.

It is an amenable number.

1212301003121 is a deficient number, since it is larger than the sum of its proper divisors (178532002063).

1212301003121 is a wasteful number, since it uses less digits than its factorization.

1212301003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33653720.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1212301003121 its reverse (1213001032121), we get a palindrome (2425302035242).

The spelling of 1212301003121 in words is "one trillion, two hundred twelve billion, three hundred one million, three thousand, one hundred twenty-one".