23010221221 has 16 divisors (see below), whose sum is σ = 24984626688. Its totient is φ = 21065472000.

The previous prime is 23010221197. The next prime is 23010221243. The reversal of 23010221221 is 12212201032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23010221221 - 2¹³ = 23010213029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23010221195 and 23010221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23010221251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249140 + ... + 1267426.

It is an arithmetic number, because the mean of its divisors is an integer number (1561539168).

Almost surely, 2^23010221221 is an apocalyptic number.

It is an amenable number.

23010221221 is a deficient number, since it is larger than the sum of its proper divisors (1974405467).

23010221221 is a wasteful number, since it uses less digits than its factorization.

23010221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19092.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23010221221 its reverse (12212201032), we get a palindrome (35222422253).

The spelling of 23010221221 in words is "twenty-three billion, ten million, two hundred twenty-one thousand, two hundred twenty-one".