22320129 has 8 divisors (see below), whose sum is σ = 32049472. Its totient is φ = 13735440.

The previous prime is 22320127. The next prime is 22320131. The reversal of 22320129 is 92102322.

It is an interprime number because it is at equal distance from previous prime (22320127) and next prime (22320131).

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

It is not a de Polignac number, because 22320129 - 2¹ = 22320127 is a prime.

It is a super-3 number, since 3×22320129³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22320127) 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, 286117 + ... + 286194.

It is an arithmetic number, because the mean of its divisors is an integer number (4006184).

Almost surely, 2^22320129 is an apocalyptic number.

It is an amenable number.

22320129 is a deficient number, since it is larger than the sum of its proper divisors (9729343).

22320129 is a wasteful number, since it uses less digits than its factorization.

22320129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572327.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 22320129 is about 4724.4183769010. The cubic root of 22320129 is about 281.5565057505.

The spelling of 22320129 in words is "twenty-two million, three hundred twenty thousand, one hundred twenty-nine".