221013010023 has 16 divisors (see below), whose sum is σ = 317360684256. Its totient is φ = 136004290560.

The previous prime is 221013010007. The next prime is 221013010051. The reversal of 221013010023 is 320010310122.

It is not a de Polignac number, because 221013010023 - 2⁴ = 221013010007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221013009984 and 221013010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221013010063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267983 + ... + 2363423.

It is an arithmetic number, because the mean of its divisors is an integer number (19835042766).

Almost surely, 2^221013010023 is an apocalyptic number.

221013010023 is a deficient number, since it is larger than the sum of its proper divisors (96347674233).

221013010023 is a wasteful number, since it uses less digits than its factorization.

221013010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154834.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221013010023 its reverse (320010310122), we get a palindrome (541023320145).

The spelling of 221013010023 in words is "two hundred twenty-one billion, thirteen million, ten thousand, twenty-three".