22133122001 has 4 divisors (see below), whose sum is σ = 23435070372. Its totient is φ = 20831173632.

The previous prime is 22133121961. The next prime is 22133122003. The reversal of 22133122001 is 10022133122.

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 17875690000 + 4257432001 = 133700^2 + 65249^2 .

It is a cyclic number.

It is not a de Polignac number, because 22133122001 - 2²² = 22128927697 is a prime.

It is a super-2 number, since 2×22133122001² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1301948353 = 22133122001 / (2 + 2 + 1 + 3 + 3 + 1 + 2 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22133122003) 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, 650974160 + ... + 650974193.

It is an arithmetic number, because the mean of its divisors is an integer number (5858767593).

Almost surely, 2^22133122001 is an apocalyptic number.

It is an amenable number.

22133122001 is a deficient number, since it is larger than the sum of its proper divisors (1301948371).

22133122001 is a wasteful number, since it uses less digits than its factorization.

22133122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301948370.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22133122001 its reverse (10022133122), we get a palindrome (32155255123).

The spelling of 22133122001 in words is "twenty-two billion, one hundred thirty-three million, one hundred twenty-two thousand, one".