222132232123221 has 32 divisors (see below), whose sum is σ = 343775509862400. Its totient is φ = 124955017709760.

The previous prime is 222132232123211. The next prime is 222132232123247. The reversal of 222132232123221 is 122321232231222.

It is not a de Polignac number, because 222132232123221 - 2¹³ = 222132232115029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222132232123201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112053886 + ... + 114019023.

It is an arithmetic number, because the mean of its divisors is an integer number (10742984683200).

Almost surely, 2^{222132232123221} is an apocalyptic number.

222132232123221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222132232123221 is a deficient number, since it is larger than the sum of its proper divisors (121643277739179).

222132232123221 is a wasteful number, since it uses less digits than its factorization.

222132232123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226073649.

The product of its digits is 13824, while the sum is 30.

Adding to 222132232123221 its reverse (122321232231222), we get a palindrome (344453464354443).

The spelling of 222132232123221 in words is "two hundred twenty-two trillion, one hundred thirty-two billion, two hundred thirty-two million, one hundred twenty-three thousand, two hundred twenty-one".