1216411461701 has 4 divisors (see below), whose sum is σ = 1280433117600. Its totient is φ = 1152389805804.

The previous prime is 1216411461697. The next prime is 1216411461731. The reversal of 1216411461701 is 1071641146121.

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 1216411461701 - 2² = 1216411461697 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 (1216411461731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32010827921 + ... + 32010827958.

It is an arithmetic number, because the mean of its divisors is an integer number (320108279400).

Almost surely, 2^{1216411461701} is an apocalyptic number.

It is an amenable number.

1216411461701 is a deficient number, since it is larger than the sum of its proper divisors (64021655899).

1216411461701 is an equidigital number, since it uses as much as digits as its factorization.

1216411461701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64021655898.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 1216411461701 in words is "one trillion, two hundred sixteen billion, four hundred eleven million, four hundred sixty-one thousand, seven hundred one".