22003220021 has 8 divisors (see below), whose sum is σ = 22717344000. Its totient is φ = 21289367520.

The previous prime is 22003219991. The next prime is 22003220053. The reversal of 22003220021 is 12002230022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22003220021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22003219978 and 22003220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003220081) 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, 103790 + ... + 234048.

It is an arithmetic number, because the mean of its divisors is an integer number (2839668000).

Almost surely, 2^22003220021 is an apocalyptic number.

It is an amenable number.

22003220021 is a deficient number, since it is larger than the sum of its proper divisors (714123979).

22003220021 is a wasteful number, since it uses less digits than its factorization.

22003220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135739.

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

Adding to 22003220021 its reverse (12002230022), we get a palindrome (34005450043).

The spelling of 22003220021 in words is "twenty-two billion, three million, two hundred twenty thousand, twenty-one".