23001221132 has 6 divisors (see below), whose sum is σ = 40252136988. Its totient is φ = 11500610564.

The previous prime is 23001221107. The next prime is 23001221149. The reversal of 23001221132 is 23112210032.

It is a super-2 number, since 2×23001221132² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23001221132.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2875152638 + ... + 2875152645.

It is an arithmetic number, because the mean of its divisors is an integer number (6708689498).

Almost surely, 2^23001221132 is an apocalyptic number.

It is an amenable number.

23001221132 is a deficient number, since it is larger than the sum of its proper divisors (17250915856).

23001221132 is a wasteful number, since it uses less digits than its factorization.

23001221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750305287 (or 5750305285 counting only the distinct ones).

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

Adding to 23001221132 its reverse (23112210032), we get a palindrome (46113431164).

The spelling of 23001221132 in words is "twenty-three billion, one million, two hundred twenty-one thousand, one hundred thirty-two".