20021020311322 has 16 divisors (see below), whose sum is σ = 30323590352640. Its totient is φ = 9913160012112.

The previous prime is 20021020311269. The next prime is 20021020311323. The reversal of 20021020311322 is 22311302012002.

It is a super-3 number, since 3×20021020311322³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20021020311322.

It is not an unprimeable number, because it can be changed into a prime (20021020311323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12490704 + ... + 14002132.

It is an arithmetic number, because the mean of its divisors is an integer number (1895224397040).

Almost surely, 2^{20021020311322} is an apocalyptic number.

20021020311322 is a deficient number, since it is larger than the sum of its proper divisors (10302570041318).

20021020311322 is a wasteful number, since it uses less digits than its factorization.

20021020311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575837.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20021020311322 its reverse (22311302012002), we get a palindrome (42332322323324).

The spelling of 20021020311322 in words is "twenty trillion, twenty-one billion, twenty million, three hundred eleven thousand, three hundred twenty-two".