23222120145 has 32 divisors (see below), whose sum is σ = 42639548160. Its totient is φ = 10571765760.

The previous prime is 23222120143. The next prime is 23222120147. The reversal of 23222120145 is 54102122232.

It is an interprime number because it is at equal distance from previous prime (23222120143) and next prime (23222120147).

It is not a de Polignac number, because 23222120145 - 2¹ = 23222120143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23222120143) 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 31 ways as a sum of consecutive naturals, for example, 433540 + ... + 484149.

It is an arithmetic number, because the mean of its divisors is an integer number (1332485880).

Almost surely, 2^23222120145 is an apocalyptic number.

It is an amenable number.

23222120145 is a deficient number, since it is larger than the sum of its proper divisors (19417428015).

23222120145 is a wasteful number, since it uses less digits than its factorization.

23222120145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917945.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 23222120145 its reverse (54102122232), we get a palindrome (77324242377).

The spelling of 23222120145 in words is "twenty-three billion, two hundred twenty-two million, one hundred twenty thousand, one hundred forty-five".