1217972160001 has 8 divisors (see below), whose sum is σ = 1235198157704. Its totient is φ = 1200760796160.

The previous prime is 1217972159993. The next prime is 1217972160049. The reversal of 1217972160001 is 1000612797121.

It can be written as a sum of positive squares in 4 ways, for example, as 171031873600 + 1046940286401 = 413560^2 + 1023201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1217972160001 - 2³ = 1217972159993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1217972160101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3490776 + ... + 3823801.

It is an arithmetic number, because the mean of its divisors is an integer number (154399769713).

Almost surely, 2^{1217972160001} is an apocalyptic number.

It is an amenable number.

1217972160001 is a deficient number, since it is larger than the sum of its proper divisors (17225997703).

1217972160001 is an equidigital number, since it uses as much as digits as its factorization.

1217972160001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316931.

The product of its (nonzero) digits is 10584, while the sum is 37.

The spelling of 1217972160001 in words is "one trillion, two hundred seventeen billion, nine hundred seventy-two million, one hundred sixty thousand, one".