22155202001 has 8 divisors (see below), whose sum is σ = 22207022208. Its totient is φ = 22103410000.

The previous prime is 22155201989. The next prime is 22155202031. The reversal of 22155202001 is 10020255122.

It is a happy number.

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 22155202001 - 2¹⁸ = 22154939857 is a prime.

It is a super-2 number, since 2×22155202001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22155202031) 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, 2800151 + ... + 2808051.

It is an arithmetic number, because the mean of its divisors is an integer number (2775877776).

Almost surely, 2^22155202001 is an apocalyptic number.

It is an amenable number.

22155202001 is a deficient number, since it is larger than the sum of its proper divisors (51820207).

22155202001 is an equidigital number, since it uses as much as digits as its factorization.

22155202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103.

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 22155202001 its reverse (10020255122), we get a palindrome (32175457123).

The spelling of 22155202001 in words is "twenty-two billion, one hundred fifty-five million, two hundred two thousand, one".