21333223102 has 4 divisors (see below), whose sum is σ = 31999834656. Its totient is φ = 10666611550.

The previous prime is 21333223069. The next prime is 21333223111. The reversal of 21333223102 is 20132233312.

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

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, 5333305774 + ... + 5333305777.

It is an arithmetic number, because the mean of its divisors is an integer number (7999958664).

Almost surely, 2^21333223102 is an apocalyptic number.

21333223102 is a deficient number, since it is larger than the sum of its proper divisors (10666611554).

21333223102 is a wasteful number, since it uses less digits than its factorization.

21333223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666611553.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21333223102 its reverse (20132233312), we get a palindrome (41465456414).

The spelling of 21333223102 in words is "twenty-one billion, three hundred thirty-three million, two hundred twenty-three thousand, one hundred two".