22151154343243 has 16 divisors (see below), whose sum is σ = 22708415888640. Its totient is φ = 21600856148256.

The previous prime is 22151154343189. The next prime is 22151154343247. The reversal of 22151154343243 is 34234345115122.

It is a cyclic number.

It is not a de Polignac number, because 22151154343243 - 2⁹ = 22151154342731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22151154343196 and 22151154343205.

It is not an unprimeable number, because it can be changed into a prime (22151154343247) 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, 8717818 + ... + 10968256.

It is an arithmetic number, because the mean of its divisors is an integer number (1419275993040).

Almost surely, 2^{22151154343243} is an apocalyptic number.

22151154343243 is a deficient number, since it is larger than the sum of its proper divisors (557261545397).

22151154343243 is a wasteful number, since it uses less digits than its factorization.

22151154343243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251986.

The product of its digits is 345600, while the sum is 40.

Adding to 22151154343243 its reverse (34234345115122), we get a palindrome (56385499458365).

The spelling of 22151154343243 in words is "twenty-two trillion, one hundred fifty-one billion, one hundred fifty-four million, three hundred forty-three thousand, two hundred forty-three".