22221011021 has 8 divisors (see below), whose sum is σ = 24242328000. Its totient is φ = 20199898240.

The previous prime is 22221010997. The next prime is 22221011101. The reversal of 22221011021 is 12011012222.

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 22221011021 - 2¹⁰ = 22221009997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221010987 and 22221011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221011621) 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, 257720 + ... + 332958.

It is an arithmetic number, because the mean of its divisors is an integer number (3030291000).

Almost surely, 2^22221011021 is an apocalyptic number.

It is an amenable number.

22221011021 is a deficient number, since it is larger than the sum of its proper divisors (2021316979).

22221011021 is a wasteful number, since it uses less digits than its factorization.

22221011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102099.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22221011021 its reverse (12011012222), we get a palindrome (34232023243).

The spelling of 22221011021 in words is "twenty-two billion, two hundred twenty-one million, eleven thousand, twenty-one".