222121203023 has 8 divisors (see below), whose sum is σ = 235191793392. Its totient is φ = 209051127936.

The previous prime is 222121203011. The next prime is 222121203037. The reversal of 222121203023 is 320302121222.

It is a happy number.

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 222121203023 - 2¹⁰ = 222121201999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222121202986 and 222121203004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121203523) 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 7 ways as a sum of consecutive naturals, for example, 1086161 + ... + 1274357.

It is an arithmetic number, because the mean of its divisors is an integer number (29398974174).

Almost surely, 2^222121203023 is an apocalyptic number.

222121203023 is a deficient number, since it is larger than the sum of its proper divisors (13070590369).

222121203023 is a wasteful number, since it uses less digits than its factorization.

222121203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257641.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222121203023 its reverse (320302121222), we get a palindrome (542423324245).

The spelling of 222121203023 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred three thousand, twenty-three".