10321121221000 has 32 divisors (see below), whose sum is σ = 24151423659480. Its totient is φ = 4128448488000.

The previous prime is 10321121220989. The next prime is 10321121221039. The reversal of 10321121221000 is 12212112301.

It can be written as a sum of positive squares in 4 ways, for example, as 427315845636 + 9893805375364 = 653694^2 + 3145442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5160559611 + ... + 5160561610.

Almost surely, 2^{10321121221000} is an apocalyptic number.

10321121221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321121221000 is an abundant number, since it is smaller than the sum of its proper divisors (13830302438480).

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

10321121221000 is a wasteful number, since it uses less digits than its factorization.

10321121221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10321121242 (or 10321121228 counting only the distinct ones).

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

Adding to 10321121221000 its reverse (12212112301), we get a palindrome (10333333333301).

The spelling of 10321121221000 in words is "ten trillion, three hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-one thousand".