2231313221020 has 48 divisors (see below), whose sum is σ = 5163554198880. Its totient is φ = 804709737216.

The previous prime is 2231313220991. The next prime is 2231313221029. The reversal of 2231313221020 is 201223131322.

It is a super-3 number, since 3×2231313221020³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231313220982 and 2231313221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231313221029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 99779215 + ... + 99801574.

It is an arithmetic number, because the mean of its divisors is an integer number (107574045810).

Almost surely, 2^{2231313221020} is an apocalyptic number.

2231313221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231313221020 is an abundant number, since it is smaller than the sum of its proper divisors (2932240977860).

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

2231313221020 is a wasteful number, since it uses less digits than its factorization.

2231313221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199580854 (or 199580852 counting only the distinct ones).

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

Adding to 2231313221020 its reverse (201223131322), we get a palindrome (2432536352342).

The spelling of 2231313221020 in words is "two trillion, two hundred thirty-one billion, three hundred thirteen million, two hundred twenty-one thousand, twenty".