21223203302 has 12 divisors (see below), whose sum is σ = 37032324300. Its totient is φ = 9095658516.

The previous prime is 21223203277. The next prime is 21223203373. The reversal of 21223203302 is 20330232212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108281552 + ... + 108281747.

It is an arithmetic number, because the mean of its divisors is an integer number (3086027025).

Almost surely, 2^21223203302 is an apocalyptic number.

21223203302 is a deficient number, since it is larger than the sum of its proper divisors (15809120998).

21223203302 is a wasteful number, since it uses less digits than its factorization.

21223203302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216563315 (or 216563308 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21223203302 its reverse (20330232212), we get a palindrome (41553435514).

The spelling of 21223203302 in words is "twenty-one billion, two hundred twenty-three million, two hundred three thousand, three hundred two".