1021232020000 has 60 divisors (see below), whose sum is σ = 2512384003206. Its totient is φ = 408492800000.

The previous prime is 1021232019959. The next prime is 1021232020007. The reversal of 1021232020000 is 202321201.

It can be written as a sum of positive squares in 5 ways, for example, as 9493774096 + 1011738245904 = 97436^2 + 1005852^2 .

It is not an unprimeable number, because it can be changed into a prime (1021232020007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25510801 + ... + 25550800.

Almost surely, 2^{1021232020000} is an apocalyptic number.

1021232020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021232020000 is an abundant number, since it is smaller than the sum of its proper divisors (1491151983206).

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

1021232020000 is an frugal number, since it uses more digits than its factorization.

1021232020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51061631 (or 51061608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 1021232020000 its reverse (202321201), we get a palindrome (1021434341201).

The spelling of 1021232020000 in words is "one trillion, twenty-one billion, two hundred thirty-two million, twenty thousand".