22501152144321 has 4 divisors (see below), whose sum is σ = 30001536192432. Its totient is φ = 15000768096212.

The previous prime is 22501152144287. The next prime is 22501152144461. The reversal of 22501152144321 is 12344125110522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22501152144321 - 2¹³ = 22501152136129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22501152164321) 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, 3750192024051 + ... + 3750192024056.

It is an arithmetic number, because the mean of its divisors is an integer number (7500384048108).

Almost surely, 2^{22501152144321} is an apocalyptic number.

It is an amenable number.

22501152144321 is a deficient number, since it is larger than the sum of its proper divisors (7500384048111).

22501152144321 is an equidigital number, since it uses as much as digits as its factorization.

22501152144321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500384048110.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 22501152144321 its reverse (12344125110522), we get a palindrome (34845277254843).

The spelling of 22501152144321 in words is "twenty-two trillion, five hundred one billion, one hundred fifty-two million, one hundred forty-four thousand, three hundred twenty-one".