20112221411 has 8 divisors (see below), whose sum is σ = 21195422400. Its totient is φ = 19031486760.

The previous prime is 20112221377. The next prime is 20112221417. The reversal of 20112221411 is 11412221102.

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 20112221411 - 2²⁶ = 20045112547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20112221411.

It is not an unprimeable number, because it can be changed into a prime (20112221417) 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, 599825 + ... + 632466.

It is an arithmetic number, because the mean of its divisors is an integer number (2649427800).

Almost surely, 2^20112221411 is an apocalyptic number.

20112221411 is a deficient number, since it is larger than the sum of its proper divisors (1083200989).

20112221411 is a wasteful number, since it uses less digits than its factorization.

20112221411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233169.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112221411 its reverse (11412221102), we get a palindrome (31524442513).

The spelling of 20112221411 in words is "twenty billion, one hundred twelve million, two hundred twenty-one thousand, four hundred eleven".