1211160116121 has 32 divisors (see below), whose sum is σ = 1712821436928. Its totient is φ = 758634024960.

The previous prime is 1211160116119. The next prime is 1211160116123. The reversal of 1211160116121 is 1216110611121.

It is an interprime number because it is at equal distance from previous prime (1211160116119) and next prime (1211160116123).

It is not a de Polignac number, because 1211160116121 - 2¹ = 1211160116119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1211160116091 and 1211160116100.

It is not an unprimeable number, because it can be changed into a prime (1211160116123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171621825 + ... + 171628881.

It is an arithmetic number, because the mean of its divisors is an integer number (53525669904).

Almost surely, 2^{1211160116121} is an apocalyptic number.

It is an amenable number.

1211160116121 is a deficient number, since it is larger than the sum of its proper divisors (501661320807).

1211160116121 is a wasteful number, since it uses less digits than its factorization.

1211160116121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12401.

The product of its (nonzero) digits is 144, while the sum is 24.

Adding to 1211160116121 its reverse (1216110611121), we get a palindrome (2427270727242).

The spelling of 1211160116121 in words is "one trillion, two hundred eleven billion, one hundred sixty million, one hundred sixteen thousand, one hundred twenty-one".