9223101221 has 4 divisors (see below), whose sum is σ = 9246333612. Its totient is φ = 9199868832.

The previous prime is 9223101211. The next prime is 9223101227. The reversal of 9223101221 is 1221013229.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3543820900 + 5679280321 = 59530^2 + 75361^2 .

It is a cyclic number.

It is not a de Polignac number, because 9223101221 - 2⁶ = 9223101157 is a prime.

It is a super-2 number, since 2×9223101221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9223101227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11615600 + ... + 11616393.

It is an arithmetic number, because the mean of its divisors is an integer number (2311583403).

Almost surely, 2^9223101221 is an apocalyptic number.

It is an amenable number.

9223101221 is a deficient number, since it is larger than the sum of its proper divisors (23232391).

9223101221 is a wasteful number, since it uses less digits than its factorization.

9223101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23232390.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 9223101221 is about 96036.9784041543. The cubic root of 9223101221 is about 2097.1314743337.

The spelling of 9223101221 in words is "nine billion, two hundred twenty-three million, one hundred one thousand, two hundred twenty-one".