22331022001 has 4 divisors (see below), whose sum is σ = 22333072500. Its totient is φ = 22328971504.

The previous prime is 22331021983. The next prime is 22331022011. The reversal of 22331022001 is 10022013322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2224065600 + 20106956401 = 47160^2 + 141799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22331022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22331022011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008826 + ... + 1030723.

It is an arithmetic number, because the mean of its divisors is an integer number (5583268125).

Almost surely, 2^22331022001 is an apocalyptic number.

It is an amenable number.

22331022001 is a deficient number, since it is larger than the sum of its proper divisors (2050499).

22331022001 is a wasteful number, since it uses less digits than its factorization.

22331022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050498.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22331022001 its reverse (10022013322), we get a palindrome (32353035323).

The spelling of 22331022001 in words is "twenty-two billion, three hundred thirty-one million, twenty-two thousand, one".