22323021 has 8 divisors (see below), whose sum is σ = 34016064. Its totient is φ = 12756000.

The previous prime is 22323019. The next prime is 22323029. The reversal of 22323021 is 12032322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22323021 - 2¹ = 22323019 is a prime.

It is a super-3 number, since 3×22323021³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22323029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531480 + ... + 531521.

It is an arithmetic number, because the mean of its divisors is an integer number (4252008).

Almost surely, 2^22323021 is an apocalyptic number.

22323021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22323021 is a deficient number, since it is larger than the sum of its proper divisors (11693043).

22323021 is a wasteful number, since it uses less digits than its factorization.

22323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063011.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22323021 is about 4724.7244364090. The cubic root of 22323021 is about 281.5686655704.

Adding to 22323021 its reverse (12032322), we get a palindrome (34355343).

It can be divided in two parts, 2232 and 3021, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 22323021 in words is "twenty-two million, three hundred twenty-three thousand, twenty-one".