1022320121000 has 64 divisors (see below), whose sum is σ = 2392768572480. Its totient is φ = 408835828800.

The previous prime is 1022320120993. The next prime is 1022320121041. The reversal of 1022320121000 is 1210232201.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 4409987 + ... + 4636013.

It is an arithmetic number, because the mean of its divisors is an integer number (37387008945).

Almost surely, 2^{1022320121000} is an apocalyptic number.

1022320121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022320121000 is an abundant number, since it is smaller than the sum of its proper divisors (1370448451480).

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

1022320121000 is a wasteful number, since it uses less digits than its factorization.

1022320121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230571 (or 230557 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1022320121000 its reverse (1210232201), we get a palindrome (1023530353201).

It can be divided in two parts, 10223201 and 21000, that added together give a palindrome (10244201).

The spelling of 1022320121000 in words is "one trillion, twenty-two billion, three hundred twenty million, one hundred twenty-one thousand".