222213321230121 has 64 divisors (see below), whose sum is σ = 355096617603840. Its totient is φ = 136527535964160.

The previous prime is 222213321230111. The next prime is 222213321230141. The reversal of 222213321230121 is 121032123312222.

222213321230121 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 1 + 332 + 1 + 2 + 301 + 21 = 666.

It is not a de Polignac number, because 222213321230121 - 2³⁹ = 221663565416233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (222213321230111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1841328835 + ... + 1841449511.

It is an arithmetic number, because the mean of its divisors is an integer number (5548384650060).

Almost surely, 2^{222213321230121} is an apocalyptic number.

It is an amenable number.

222213321230121 is a deficient number, since it is larger than the sum of its proper divisors (132883296373719).

222213321230121 is a wasteful number, since it uses less digits than its factorization.

222213321230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129063 (or 129057 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 222213321230121 its reverse (121032123312222), we get a palindrome (343245444542343).

The spelling of 222213321230121 in words is "two hundred twenty-two trillion, two hundred thirteen billion, three hundred twenty-one million, two hundred thirty thousand, one hundred twenty-one".