20110201223 has 16 divisors (see below), whose sum is σ = 23298105600. Its totient is φ = 17001733056.

The previous prime is 20110201201. The next prime is 20110201249. The reversal of 20110201223 is 32210201102.

It is a happy number.

It is not a de Polignac number, because 20110201223 - 2⁶ = 20110201159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110201198 and 20110201207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110201253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330428 + ... + 386526.

It is an arithmetic number, because the mean of its divisors is an integer number (1456131600).

Almost surely, 2^20110201223 is an apocalyptic number.

20110201223 is a deficient number, since it is larger than the sum of its proper divisors (3187904377).

20110201223 is an equidigital number, since it uses as much as digits as its factorization.

20110201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56806.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20110201223 its reverse (32210201102), we get a palindrome (52320402325).

The spelling of 20110201223 in words is "twenty billion, one hundred ten million, two hundred one thousand, two hundred twenty-three".