22421251145315 has 16 divisors (see below), whose sum is σ = 31078012284000. Its totient is φ = 15347166558720.

The previous prime is 22421251145309. The next prime is 22421251145317. The reversal of 22421251145315 is 51354115212422.

It is not a de Polignac number, because 22421251145315 - 2⁴ = 22421251145299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22421251145317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11989972940 + ... + 11989974809.

It is an arithmetic number, because the mean of its divisors is an integer number (1942375767750).

Almost surely, 2^{22421251145315} is an apocalyptic number.

22421251145315 is a deficient number, since it is larger than the sum of its proper divisors (8656761138685).

22421251145315 is a wasteful number, since it uses less digits than its factorization.

22421251145315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979947782.

The product of its digits is 96000, while the sum is 38.

Adding to 22421251145315 its reverse (51354115212422), we get a palindrome (73775366357737).

The spelling of 22421251145315 in words is "twenty-two trillion, four hundred twenty-one billion, two hundred fifty-one million, one hundred forty-five thousand, three hundred fifteen".