220144001 has 16 divisors (see below), whose sum is σ = 276905088. Its totient is φ = 170016000.

The previous prime is 220143997. The next prime is 220144003. The reversal of 220144001 is 100441022.

It is not a de Polignac number, because 220144001 - 2² = 220143997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220144003) 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, 3950 + ... + 21351.

It is an arithmetic number, because the mean of its divisors is an integer number (17306568).

Almost surely, 2^220144001 is an apocalyptic number.

It is an amenable number.

220144001 is a deficient number, since it is larger than the sum of its proper divisors (56761087).

220144001 is a wasteful number, since it uses less digits than its factorization.

220144001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25432.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 220144001 is about 14837.2504528299. The cubic root of 220144001 is about 603.8127581015.

Adding to 220144001 its reverse (100441022), we get a palindrome (320585023).

The spelling of 220144001 in words is "two hundred twenty million, one hundred forty-four thousand, one".