22011301021 has 8 divisors (see below), whose sum is σ = 23567951160. Its totient is φ = 20483747328.

The previous prime is 22011301019. The next prime is 22011301031. The reversal of 22011301021 is 12010311022.

It can be written as a sum of positive squares in 4 ways, for example, as 10380756996 + 11630544025 = 101886^2 + 107845^2 .

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 22011301021 - 2¹ = 22011301019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22011300992 and 22011301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011301031) 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, 7272546 + ... + 7275571.

It is an arithmetic number, because the mean of its divisors is an integer number (2945993895).

Almost surely, 2^22011301021 is an apocalyptic number.

It is an amenable number.

22011301021 is a deficient number, since it is larger than the sum of its proper divisors (1556650139).

22011301021 is a wasteful number, since it uses less digits than its factorization.

22011301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14548223.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22011301021 its reverse (12010311022), we get a palindrome (34021612043).

The spelling of 22011301021 in words is "twenty-two billion, eleven million, three hundred one thousand, twenty-one".