1023120032221 has 4 divisors (see below), whose sum is σ = 1169280036832. Its totient is φ = 876960027612.

The previous prime is 1023120032213. The next prime is 1023120032227. The reversal of 1023120032221 is 1222300213201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1023120032221 - 2³ = 1023120032213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023120032227) 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 3 ways as a sum of consecutive naturals, for example, 73080002295 + ... + 73080002308.

It is an arithmetic number, because the mean of its divisors is an integer number (292320009208).

Almost surely, 2^{1023120032221} is an apocalyptic number.

It is an amenable number.

1023120032221 is a deficient number, since it is larger than the sum of its proper divisors (146160004611).

1023120032221 is an equidigital number, since it uses as much as digits as its factorization.

1023120032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146160004610.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1023120032221 its reverse (1222300213201), we get a palindrome (2245420245422).

The spelling of 1023120032221 in words is "one trillion, twenty-three billion, one hundred twenty million, thirty-two thousand, two hundred twenty-one".