21040222334 has 16 divisors (see below), whose sum is σ = 32037734400. Its totient is φ = 10362169944.

The previous prime is 21040222321. The next prime is 21040222339. The reversal of 21040222334 is 43322204012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21040222339) 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, 262664 + ... + 333275.

It is an arithmetic number, because the mean of its divisors is an integer number (2002358400).

Almost surely, 2^21040222334 is an apocalyptic number.

21040222334 is a deficient number, since it is larger than the sum of its proper divisors (10997512066).

21040222334 is a wasteful number, since it uses less digits than its factorization.

21040222334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596207.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21040222334 its reverse (43322204012), we get a palindrome (64362426346).

The spelling of 21040222334 in words is "twenty-one billion, forty million, two hundred twenty-two thousand, three hundred thirty-four".