1212001110101 has 4 divisors (see below), whose sum is σ = 1221253027104. Its totient is φ = 1202749193100.

The previous prime is 1212001110053. The next prime is 1212001110119. The reversal of 1212001110101 is 1010111002121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1212001110101 - 2¹⁴ = 1212001093717 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 (1212001110121) 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 3 ways as a sum of consecutive naturals, for example, 4625958305 + ... + 4625958566.

It is an arithmetic number, because the mean of its divisors is an integer number (305313256776).

Almost surely, 2^{1212001110101} is an apocalyptic number.

It is an amenable number.

1212001110101 is a deficient number, since it is larger than the sum of its proper divisors (9251917003).

1212001110101 is an equidigital number, since it uses as much as digits as its factorization.

1212001110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9251917002.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1212001110101 its reverse (1010111002121), we get a palindrome (2222112112222).

The spelling of 1212001110101 in words is "one trillion, two hundred twelve billion, one million, one hundred ten thousand, one hundred one".