21412423111201 has 16 divisors (see below), whose sum is σ = 21915059099904. Its totient is φ = 20915560658304.

The previous prime is 21412423111193. The next prime is 21412423111231. The reversal of 21412423111201 is 10211132421412.

It is a cyclic number.

It is not a de Polignac number, because 21412423111201 - 2³ = 21412423111193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21412423111231) 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, 26209771 + ... + 27014383.

It is an arithmetic number, because the mean of its divisors is an integer number (1369691193744).

Almost surely, 2^{21412423111201} is an apocalyptic number.

It is an amenable number.

21412423111201 is a deficient number, since it is larger than the sum of its proper divisors (502635988703).

21412423111201 is a wasteful number, since it uses less digits than its factorization.

21412423111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808200.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 21412423111201 its reverse (10211132421412), we get a palindrome (31623555532613).

The spelling of 21412423111201 in words is "twenty-one trillion, four hundred twelve billion, four hundred twenty-three million, one hundred eleven thousand, two hundred one".