22124112203421 has 6 divisors (see below), whose sum is σ = 31957050960510. Its totient is φ = 14749408135608.

The previous prime is 22124112203399. The next prime is 22124112203423. The reversal of 22124112203421 is 12430221142122.

22124112203421 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 4 + 11 + 220 + 3 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22038095525625 + 86016677796 = 4694475^2 + 293286^2 .

It is not a de Polignac number, because 22124112203421 - 2⁶ = 22124112203357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124112203423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1229117344626 + ... + 1229117344643.

It is an arithmetic number, because the mean of its divisors is an integer number (5326175160085).

Almost surely, 2^{22124112203421} is an apocalyptic number.

It is an amenable number.

22124112203421 is a deficient number, since it is larger than the sum of its proper divisors (9832938757089).

22124112203421 is a wasteful number, since it uses less digits than its factorization.

22124112203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458234689275 (or 2458234689272 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 22124112203421 its reverse (12430221142122), we get a palindrome (34554333345543).

The spelling of 22124112203421 in words is "twenty-two trillion, one hundred twenty-four billion, one hundred twelve million, two hundred three thousand, four hundred twenty-one".