21412230554 has 32 divisors (see below), whose sum is σ = 37742169024. Its totient is φ = 8982074880.

The previous prime is 21412230527. The next prime is 21412230599. The reversal of 21412230554 is 45503221412.

It is a super-2 number, since 2×21412230554² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2384477 + ... + 2393439.

It is an arithmetic number, because the mean of its divisors is an integer number (1179442782).

Almost surely, 2^21412230554 is an apocalyptic number.

21412230554 is a deficient number, since it is larger than the sum of its proper divisors (16329938470).

21412230554 is a wasteful number, since it uses less digits than its factorization.

21412230554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17342.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 21412230554 its reverse (45503221412), we get a palindrome (66915451966).

The spelling of 21412230554 in words is "twenty-one billion, four hundred twelve million, two hundred thirty thousand, five hundred fifty-four".