1216634060101 has 4 divisors (see below), whose sum is σ = 1216691831872. Its totient is φ = 1216576288332.

The previous prime is 1216634060027. The next prime is 1216634060113. The reversal of 1216634060101 is 1010604366121.

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 a de Polignac number, because none of the positive numbers 2^k-1216634060101 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 (1216634067101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28854285 + ... + 28896418.

It is an arithmetic number, because the mean of its divisors is an integer number (304172957968).

Almost surely, 2^{1216634060101} is an apocalyptic number.

It is an amenable number.

1216634060101 is a deficient number, since it is larger than the sum of its proper divisors (57771771).

1216634060101 is an equidigital number, since it uses as much as digits as its factorization.

1216634060101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57771770.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 1216634060101 in words is "one trillion, two hundred sixteen billion, six hundred thirty-four million, sixty thousand, one hundred one".