22210220021 has 8 divisors (see below), whose sum is σ = 24277506624. Its totient is φ = 20150962720.

The previous prime is 22210220017. The next prime is 22210220063. The reversal of 22210220021 is 12002201222.

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

It is a cyclic number.

It is not a de Polignac number, because 22210220021 - 2² = 22210220017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210219978 and 22210220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210220521) 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, 2001536 + ... + 2012601.

It is an arithmetic number, because the mean of its divisors is an integer number (3034688328).

Almost surely, 2^22210220021 is an apocalyptic number.

It is an amenable number.

22210220021 is a deficient number, since it is larger than the sum of its proper divisors (2067286603).

22210220021 is a wasteful number, since it uses less digits than its factorization.

22210220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014651.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22210220021 its reverse (12002201222), we get a palindrome (34212421243).

The spelling of 22210220021 in words is "twenty-two billion, two hundred ten million, two hundred twenty thousand, twenty-one".