21013300222 has 4 divisors (see below), whose sum is σ = 31519950336. Its totient is φ = 10506650110.

The previous prime is 21013300207. The next prime is 21013300247. The reversal of 21013300222 is 22200331012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 21013300196 and 21013300205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5253325054 + ... + 5253325057.

It is an arithmetic number, because the mean of its divisors is an integer number (7879987584).

Almost surely, 2^21013300222 is an apocalyptic number.

21013300222 is a deficient number, since it is larger than the sum of its proper divisors (10506650114).

21013300222 is a wasteful number, since it uses less digits than its factorization.

21013300222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10506650113.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21013300222 its reverse (22200331012), we get a palindrome (43213631234).

The spelling of 21013300222 in words is "twenty-one billion, thirteen million, three hundred thousand, two hundred twenty-two".