22233155021 has 8 divisors (see below), whose sum is σ = 27719258304. Its totient is φ = 17324536320.

The previous prime is 22233155017. The next prime is 22233155027. The reversal of 22233155021 is 12055133222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22233155021 - 2² = 22233155017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233155027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144371060 + ... + 144371213.

It is an arithmetic number, because the mean of its divisors is an integer number (3464907288).

Almost surely, 2^22233155021 is an apocalyptic number.

It is an amenable number.

22233155021 is a deficient number, since it is larger than the sum of its proper divisors (5486103283).

22233155021 is a wasteful number, since it uses less digits than its factorization.

22233155021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288742291.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 22233155021 its reverse (12055133222), we get a palindrome (34288288243).

The spelling of 22233155021 in words is "twenty-two billion, two hundred thirty-three million, one hundred fifty-five thousand, twenty-one".