22023415212545 has 8 divisors (see below), whose sum is σ = 26443348177896. Its totient is φ = 17608565554816.

The previous prime is 22023415212497. The next prime is 22023415212629. The reversal of 22023415212545 is 54521251432022.

It can be written as a sum of positive squares in 4 ways, for example, as 5015445351361 + 17007969861184 = 2239519^2 + 4124072^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22023415212545 - 2¹⁴ = 22023415196161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22023415212499 and 22023415212508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270817372 + ... + 1270834701.

It is an arithmetic number, because the mean of its divisors is an integer number (3305418522237).

Almost surely, 2^{22023415212545} is an apocalyptic number.

It is an amenable number.

22023415212545 is a deficient number, since it is larger than the sum of its proper divisors (4419932965351).

22023415212545 is a wasteful number, since it uses less digits than its factorization.

22023415212545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541653811.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 22023415212545 its reverse (54521251432022), we get a palindrome (76544666644567).

The spelling of 22023415212545 in words is "twenty-two trillion, twenty-three billion, four hundred fifteen million, two hundred twelve thousand, five hundred forty-five".