1216262270231 has 8 divisors (see below), whose sum is σ = 1230051242784. Its totient is φ = 1202550982560.

The previous prime is 1216262270219. The next prime is 1216262270239. The reversal of 1216262270231 is 1320722626121.

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 1216262270231 - 2¹⁴ = 1216262253847 is a prime.

It is a super-2 number, since 2×1216262270231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1216262270191 and 1216262270200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216262270239) 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, 19389731 + ... + 19452356.

It is an arithmetic number, because the mean of its divisors is an integer number (153756405348).

Almost surely, 2^{1216262270231} is an apocalyptic number.

1216262270231 is a deficient number, since it is larger than the sum of its proper divisors (13788972553).

1216262270231 is a wasteful number, since it uses less digits than its factorization.

1216262270231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38842441.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 1216262270231 its reverse (1320722626121), we get a palindrome (2536984896352).

The spelling of 1216262270231 in words is "one trillion, two hundred sixteen billion, two hundred sixty-two million, two hundred seventy thousand, two hundred thirty-one".