20021320022 has 8 divisors (see below), whose sum is σ = 32762160072. Its totient is φ = 9100600000.

The previous prime is 20021319943. The next prime is 20021320037. The reversal of 20021320022 is 22002312002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20021319979 and 20021320006.

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, 455029979 + ... + 455030022.

It is an arithmetic number, because the mean of its divisors is an integer number (4095270009).

Almost surely, 2^20021320022 is an apocalyptic number.

20021320022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021320022 is a deficient number, since it is larger than the sum of its proper divisors (12740840050).

20021320022 is a wasteful number, since it uses less digits than its factorization.

20021320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910060014.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20021320022 its reverse (22002312002), we get a palindrome (42023632024).

It can be divided in two parts, 20021 and 320022, that added together give a palindrome (340043).

The spelling of 20021320022 in words is "twenty billion, twenty-one million, three hundred twenty thousand, twenty-two".