23020222221 has 32 divisors (see below), whose sum is σ = 35739774720. Its totient is φ = 14616467712.

The previous prime is 23020222213. The next prime is 23020222279. The reversal of 23020222221 is 12222202032.

It is not a de Polignac number, because 23020222221 - 2³ = 23020222213 is a prime.

It is a super-2 number, since 2×23020222221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23020222194 and 23020222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020220221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65145 + ... + 224241.

It is an arithmetic number, because the mean of its divisors is an integer number (1116867960).

Almost surely, 2^23020222221 is an apocalyptic number.

It is an amenable number.

23020222221 is a deficient number, since it is larger than the sum of its proper divisors (12719552499).

23020222221 is a wasteful number, since it uses less digits than its factorization.

23020222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159362 (or 159356 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23020222221 its reverse (12222202032), we get a palindrome (35242424253).

The spelling of 23020222221 in words is "twenty-three billion, twenty million, two hundred twenty-two thousand, two hundred twenty-one".