22021303213 has 16 divisors (see below), whose sum is σ = 27156447360. Its totient is φ = 17389181376.

The previous prime is 22021303177. The next prime is 22021303219. The reversal of 22021303213 is 31230312022.

It is not a de Polignac number, because 22021303213 - 2⁹ = 22021302701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021303219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191395 + ... + 284032.

It is an arithmetic number, because the mean of its divisors is an integer number (1697277960).

Almost surely, 2^22021303213 is an apocalyptic number.

It is an amenable number.

22021303213 is a deficient number, since it is larger than the sum of its proper divisors (5135144147).

22021303213 is a wasteful number, since it uses less digits than its factorization.

22021303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475956.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22021303213 its reverse (31230312022), we get a palindrome (53251615235).

The spelling of 22021303213 in words is "twenty-two billion, twenty-one million, three hundred three thousand, two hundred thirteen".