21403301222 has 16 divisors (see below), whose sum is σ = 35264021760. Its totient is φ = 9697605192.

The previous prime is 21403301221. The next prime is 21403301261. The reversal of 21403301222 is 22210330412.

It is a junction number, because it is equal to n+sod(n) for n = 21403301194 and 21403301203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21403301221) 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, 12243578 + ... + 12245325.

It is an arithmetic number, because the mean of its divisors is an integer number (2204001360).

Almost surely, 2^21403301222 is an apocalyptic number.

21403301222 is a deficient number, since it is larger than the sum of its proper divisors (13860720538).

21403301222 is a wasteful number, since it uses less digits than its factorization.

21403301222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24488947.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21403301222 its reverse (22210330412), we get a palindrome (43613631634).

The spelling of 21403301222 in words is "twenty-one billion, four hundred three million, three hundred one thousand, two hundred twenty-two".