21227134141 has 4 divisors (see below), whose sum is σ = 21238780032. Its totient is φ = 21215488252.

The previous prime is 21227134129. The next prime is 21227134151. The reversal of 21227134141 is 14143172212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21227134141 - 2⁵ = 21227134109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21227134151) 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, 5820211 + ... + 5823856.

It is an arithmetic number, because the mean of its divisors is an integer number (5309695008).

Almost surely, 2^21227134141 is an apocalyptic number.

It is an amenable number.

21227134141 is a deficient number, since it is larger than the sum of its proper divisors (11645891).

21227134141 is a wasteful number, since it uses less digits than its factorization.

21227134141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11645890.

The product of its digits is 2688, while the sum is 28.

The spelling of 21227134141 in words is "twenty-one billion, two hundred twenty-seven million, one hundred thirty-four thousand, one hundred forty-one".