23010221021 has 16 divisors (see below), whose sum is σ = 24435605376. Its totient is φ = 21592935936.

The previous prime is 23010220927. The next prime is 23010221027. The reversal of 23010221021 is 12012201032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23010221021 - 2²² = 23006026717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23010220987 and 23010221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23010221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11579390 + ... + 11581376.

It is an arithmetic number, because the mean of its divisors is an integer number (1527225336).

Almost surely, 2^23010221021 is an apocalyptic number.

It is an amenable number.

23010221021 is a deficient number, since it is larger than the sum of its proper divisors (1425384355).

23010221021 is a wasteful number, since it uses less digits than its factorization.

23010221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23010221021 its reverse (12012201032), we get a palindrome (35022422053).

The spelling of 23010221021 in words is "twenty-three billion, ten million, two hundred twenty-one thousand, twenty-one".