21022213301 has 8 divisors (see below), whose sum is σ = 22129991520. Its totient is φ = 19914569712.

The previous prime is 21022213297. The next prime is 21022213319. The reversal of 21022213301 is 10331222012.

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

It is not a de Polignac number, because 21022213301 - 2² = 21022213297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21022213301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022213321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523526 + ... + 562248.

It is an arithmetic number, because the mean of its divisors is an integer number (2766248940).

Almost surely, 2^21022213301 is an apocalyptic number.

It is an amenable number.

21022213301 is a deficient number, since it is larger than the sum of its proper divisors (1107778219).

21022213301 is a wasteful number, since it uses less digits than its factorization.

21022213301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67315.

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

Adding to 21022213301 its reverse (10331222012), we get a palindrome (31353435313).

The spelling of 21022213301 in words is "twenty-one billion, twenty-two million, two hundred thirteen thousand, three hundred one".