10240121023221 has 16 divisors (see below), whose sum is σ = 13818134151360. Its totient is φ = 6744429283200.

The previous prime is 10240121023157. The next prime is 10240121023229. The reversal of 10240121023221 is 12232012104201.

It is a happy number.

10240121023221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10240121023221 - 2⁶ = 10240121023157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10240121023229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40493071 + ... + 40745171.

It is an arithmetic number, because the mean of its divisors is an integer number (863633384460).

Almost surely, 2^{10240121023221} is an apocalyptic number.

It is an amenable number.

10240121023221 is a deficient number, since it is larger than the sum of its proper divisors (3578013128139).

10240121023221 is a wasteful number, since it uses less digits than its factorization.

10240121023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415316.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10240121023221 its reverse (12232012104201), we get a palindrome (22472133127422).

It can be divided in two parts, 10240 and 121023221, that added together give a triangular number (121033461 = T₁₅₅₅₈).

The spelling of 10240121023221 in words is "ten trillion, two hundred forty billion, one hundred twenty-one million, twenty-three thousand, two hundred twenty-one".