20220231144040 has 128 divisors (see below), whose sum is σ = 46183063680000. Its totient is φ = 7966594234368.

The previous prime is 20220231144031. The next prime is 20220231144053. The reversal of 20220231144040 is 4044113202202.

It is a junction number, because it is equal to n+sod(n) for n = 20220231143996 and 20220231144014.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1944434761 + ... + 1944445159.

It is an arithmetic number, because the mean of its divisors is an integer number (360805185000).

Almost surely, 2^{20220231144040} is an apocalyptic number.

20220231144040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220231144040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23091531840000).

20220231144040 is an abundant number, since it is smaller than the sum of its proper divisors (25962832535960).

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

20220231144040 is a wasteful number, since it uses less digits than its factorization.

20220231144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539 (or 12535 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20220231144040 its reverse (4044113202202), we get a palindrome (24264344346242).

The spelling of 20220231144040 in words is "twenty trillion, two hundred twenty billion, two hundred thirty-one million, one hundred forty-four thousand, forty".