21340030222 has 16 divisors (see below), whose sum is σ = 37475176032. Its totient is φ = 8922660480.

The previous prime is 21340030207. The next prime is 21340030241. The reversal of 21340030222 is 22203004312.

It is a self number, because there is not a number n which added to its sum of digits gives 21340030222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18588303 + ... + 18589450.

It is an arithmetic number, because the mean of its divisors is an integer number (2342198502).

Almost surely, 2^21340030222 is an apocalyptic number.

21340030222 is a deficient number, since it is larger than the sum of its proper divisors (16135145810).

21340030222 is a wasteful number, since it uses less digits than its factorization.

21340030222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37177803.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21340030222 its reverse (22203004312), we get a palindrome (43543034534).

The spelling of 21340030222 in words is "twenty-one billion, three hundred forty million, thirty thousand, two hundred twenty-two".