22135032121 has 8 divisors (see below), whose sum is σ = 23442920424. Its totient is φ = 20827791360.

The previous prime is 22135032103. The next prime is 22135032149. The reversal of 22135032121 is 12123053122.

It can be written as a sum of positive squares in 4 ways, for example, as 34047225 + 22100984896 = 5835^2 + 148664^2 .

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 22135032121 - 2⁷ = 22135031993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22135032092 and 22135032101.

It is not an unprimeable number, because it can be changed into a prime (22135032151) 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, 90600 + ... + 229081.

It is an arithmetic number, because the mean of its divisors is an integer number (2930365053).

Almost surely, 2^22135032121 is an apocalyptic number.

It is an amenable number.

22135032121 is a deficient number, since it is larger than the sum of its proper divisors (1307888303).

22135032121 is a wasteful number, since it uses less digits than its factorization.

22135032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323771.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 22135032121 its reverse (12123053122), we get a palindrome (34258085243).

The spelling of 22135032121 in words is "twenty-two billion, one hundred thirty-five million, thirty-two thousand, one hundred twenty-one".