22201021121 has 8 divisors (see below), whose sum is σ = 22512944520. Its totient is φ = 21889308672.

The previous prime is 22201021103. The next prime is 22201021151. The reversal of 22201021121 is 12112010222.

It can be written as a sum of positive squares in 4 ways, for example, as 794112400 + 21406908721 = 28180^2 + 146311^2 .

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 22201021121 - 2¹⁴ = 22201004737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201021096 and 22201021105.

It is not an unprimeable number, because it can be changed into a prime (22201021151) 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, 165521 + ... + 267953.

It is an arithmetic number, because the mean of its divisors is an integer number (2814118065).

Almost surely, 2^22201021121 is an apocalyptic number.

It is an amenable number.

22201021121 is a deficient number, since it is larger than the sum of its proper divisors (311923399).

22201021121 is a wasteful number, since it uses less digits than its factorization.

22201021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105475.

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

Adding to 22201021121 its reverse (12112010222), we get a palindrome (34313031343).

The spelling of 22201021121 in words is "twenty-two billion, two hundred one million, twenty-one thousand, one hundred twenty-one".