22001230 has 16 divisors (see below), whose sum is σ = 41932080. Its totient is φ = 8282752.

The previous prime is 22001209. The next prime is 22001237. The reversal of 22001230 is 3210022.

It is a Harshad number since it is a multiple of its sum of digits (10).

22001230 is a modest number, since divided by 1230 gives 220 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001237) 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, 64540 + ... + 64879.

It is an arithmetic number, because the mean of its divisors is an integer number (2620755).

Almost surely, 2^22001230 is an apocalyptic number.

22001230 is a deficient number, since it is larger than the sum of its proper divisors (19930850).

22001230 is a wasteful number, since it uses less digits than its factorization.

22001230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129443.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 22001230 is about 4690.5468764314. The cubic root of 22001230 is about 280.2091549506.

Adding to 22001230 its reverse (3210022), we get a palindrome (25211252).

The spelling of 22001230 in words is "twenty-two million, one thousand, two hundred thirty".