221123232122020 has 48 divisors (see below), whose sum is σ = 464721197149440. Its totient is φ = 88380265440896.

The previous prime is 221123232121997. The next prime is 221123232122047. The reversal of 221123232122020 is 20221232321122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1976676609 + ... + 1976788471.

It is an arithmetic number, because the mean of its divisors is an integer number (9681691607280).

Almost surely, 2^{221123232122020} is an apocalyptic number.

221123232122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221123232122020 is an abundant number, since it is smaller than the sum of its proper divisors (243597965027420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221123232122020 is a wasteful number, since it uses less digits than its factorization.

221123232122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188124 (or 188122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221123232122020 its reverse (20221232321122), we get a palindrome (241344464443142).

The spelling of 221123232122020 in words is "two hundred twenty-one trillion, one hundred twenty-three billion, two hundred thirty-two million, one hundred twenty-two thousand, twenty".