1161210100211 has 64 divisors (see below), whose sum is σ = 1455675116544. Its totient is φ = 903807590400.

The previous prime is 1161210100187. The next prime is 1161210100223. The reversal of 1161210100211 is 1120010121611.

It is a cyclic number.

It is not a de Polignac number, because 1161210100211 - 2⁶ = 1161210100147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1161210100211.

It is not an unprimeable number, because it can be changed into a prime (1161210100511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117206120 + ... + 117216026.

It is an arithmetic number, because the mean of its divisors is an integer number (22744923696).

Almost surely, 2^{1161210100211} is an apocalyptic number.

1161210100211 is a deficient number, since it is larger than the sum of its proper divisors (294465016333).

1161210100211 is a wasteful number, since it uses less digits than its factorization.

1161210100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 1161210100211 its reverse (1120010121611), we get a palindrome (2281220221822).

The spelling of 1161210100211 in words is "one trillion, one hundred sixty-one billion, two hundred ten million, one hundred thousand, two hundred eleven".