20221240480993 has 8 divisors (see below), whose sum is σ = 20918686072680. Its totient is φ = 19523805651840.

The previous prime is 20221240480927. The next prime is 20221240481003. The reversal of 20221240480993 is 39908404212202.

It can be written as a sum of positive squares in 4 ways, for example, as 14370414833889 + 5850825647104 = 3790833^2 + 2418848^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221240480993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221240489993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228663 + ... + 6477043.

It is an arithmetic number, because the mean of its divisors is an integer number (2614835759085).

Almost surely, 2^{20221240480993} is an apocalyptic number.

It is an amenable number.

20221240480993 is a deficient number, since it is larger than the sum of its proper divisors (697445591687).

20221240480993 is a wasteful number, since it uses less digits than its factorization.

20221240480993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381267.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 20221240480993 in words is "twenty trillion, two hundred twenty-one billion, two hundred forty million, four hundred eighty thousand, nine hundred ninety-three".