20001022013223 has 48 divisors (see below), whose sum is σ = 30751053840000. Its totient is φ = 12491252222400.

The previous prime is 20001022013207. The next prime is 20001022013239. The reversal of 20001022013223 is 32231022010002.

20001022013223 is a `hidden beast` number, since 200 + 0 + 10 + 220 + 13 + 223 = 666.

It is an interprime number because it is at equal distance from previous prime (20001022013207) and next prime (20001022013239).

It is not a de Polignac number, because 20001022013223 - 2⁴ = 20001022013207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20001022013196 and 20001022013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001022013923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12856528 + ... + 14328026.

It is an arithmetic number, because the mean of its divisors is an integer number (640646955000).

Almost surely, 2^{20001022013223} is an apocalyptic number.

20001022013223 is a deficient number, since it is larger than the sum of its proper divisors (10750031826777).

20001022013223 is a wasteful number, since it uses less digits than its factorization.

20001022013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472412 (or 1472409 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20001022013223 its reverse (32231022010002), we get a palindrome (52232044023225).

The spelling of 20001022013223 in words is "twenty trillion, one billion, twenty-two million, thirteen thousand, two hundred twenty-three".