21011223302 has 8 divisors (see below), whose sum is σ = 33175615800. Its totient is φ = 9952684704.

The previous prime is 21011223271. The next prime is 21011223319. The reversal of 21011223302 is 20332211012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276463427 + ... + 276463502.

It is an arithmetic number, because the mean of its divisors is an integer number (4146951975).

Almost surely, 2^21011223302 is an apocalyptic number.

21011223302 is a deficient number, since it is larger than the sum of its proper divisors (12164392498).

21011223302 is a wasteful number, since it uses less digits than its factorization.

21011223302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552926950.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21011223302 its reverse (20332211012), we get a palindrome (41343434314).

The spelling of 21011223302 in words is "twenty-one billion, eleven million, two hundred twenty-three thousand, three hundred two".