11222143646161 has 16 divisors (see below), whose sum is σ = 13647976761600. Its totient is φ = 9007664624640.

The previous prime is 11222143646083. The next prime is 11222143646167. The reversal of 11222143646161 is 16164634122211.

It is a cyclic number.

It is not a de Polignac number, because 11222143646161 - 2⁹ = 11222143645649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222143646167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236920360 + ... + 236967721.

It is an arithmetic number, because the mean of its divisors is an integer number (852998547600).

Almost surely, 2^{11222143646161} is an apocalyptic number.

It is an amenable number.

11222143646161 is a deficient number, since it is larger than the sum of its proper divisors (2425833115439).

11222143646161 is a wasteful number, since it uses less digits than its factorization.

11222143646161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473888304.

The product of its digits is 82944, while the sum is 40.

Adding to 11222143646161 its reverse (16164634122211), we get a palindrome (27386777768372).

The spelling of 11222143646161 in words is "eleven trillion, two hundred twenty-two billion, one hundred forty-three million, six hundred forty-six thousand, one hundred sixty-one".