21132022411 has 4 divisors (see below), whose sum is σ = 21132472824. Its totient is φ = 21131572000.

The previous prime is 21132022393. The next prime is 21132022423. The reversal of 21132022411 is 11422023112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21132022411 - 2¹³ = 21132014219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132022481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145405 + ... + 251806.

It is an arithmetic number, because the mean of its divisors is an integer number (5283118206).

Almost surely, 2^21132022411 is an apocalyptic number.

21132022411 is a deficient number, since it is larger than the sum of its proper divisors (450413).

21132022411 is an equidigital number, since it uses as much as digits as its factorization.

21132022411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450412.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21132022411 its reverse (11422023112), we get a palindrome (32554045523).

The spelling of 21132022411 in words is "twenty-one billion, one hundred thirty-two million, twenty-two thousand, four hundred eleven".