2231121323020 has 12 divisors (see below), whose sum is σ = 4685354778384. Its totient is φ = 892448529200.

The previous prime is 2231121322993. The next prime is 2231121323059. The reversal of 2231121323020 is 203231211322.

It is a super-3 number, since 3×2231121323020³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231121322982 and 2231121323000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55778033056 + ... + 55778033095.

It is an arithmetic number, because the mean of its divisors is an integer number (390446231532).

Almost surely, 2^{2231121323020} is an apocalyptic number.

2231121323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231121323020 is an abundant number, since it is smaller than the sum of its proper divisors (2454233455364).

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

2231121323020 is a wasteful number, since it uses less digits than its factorization.

2231121323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111556066160 (or 111556066158 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2231121323020 its reverse (203231211322), we get a palindrome (2434352534342).

The spelling of 2231121323020 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-three thousand, twenty".