1232021111020 has 288 divisors, whose sum is σ = 3253715583552. Its totient is φ = 389230313472.

The previous prime is 1232021111017. The next prime is 1232021111077. The reversal of 1232021111020 is 201111202321.

It is a junction number, because it is equal to n+sod(n) for n = 1232021110985 and 1232021111003.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 518308072 + ... + 518310448.

It is an arithmetic number, because the mean of its divisors is an integer number (11297623554).

Almost surely, 2^{1232021111020} is an apocalyptic number.

1232021111020 is a gapful number since it is divisible by the number (10) 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 1232021111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626857791776).

1232021111020 is an abundant number, since it is smaller than the sum of its proper divisors (2021694472532).

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

1232021111020 is a wasteful number, since it uses less digits than its factorization.

1232021111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057 (or 3048 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1232021111020 its reverse (201111202321), we get a palindrome (1433132313341).

The spelling of 1232021111020 in words is "one trillion, two hundred thirty-two billion, twenty-one million, one hundred eleven thousand, twenty".