1216272062121 has 8 divisors (see below), whose sum is σ = 1707048508320. Its totient is φ = 768171828672.

The previous prime is 1216272062111. The next prime is 1216272062171. The reversal of 1216272062121 is 1212602726121.

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

It is not a de Polignac number, because 1216272062121 - 2¹⁰ = 1216272061097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1216272062111) 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, 10669053120 + ... + 10669053233.

It is an arithmetic number, because the mean of its divisors is an integer number (213381063540).

Almost surely, 2^{1216272062121} is an apocalyptic number.

It is an amenable number.

1216272062121 is a deficient number, since it is larger than the sum of its proper divisors (490776446199).

1216272062121 is a wasteful number, since it uses less digits than its factorization.

1216272062121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21338106375.

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 1216272062121 its reverse (1212602726121), we get a palindrome (2428874788242).

The spelling of 1216272062121 in words is "one trillion, two hundred sixteen billion, two hundred seventy-two million, sixty-two thousand, one hundred twenty-one".