123220201 has 8 divisors (see below), whose sum is σ = 132784904. Its totient is φ = 113667840.

The previous prime is 123220193. The next prime is 123220219. The reversal of 123220201 is 102022321.

It can be written as a sum of positive squares in 4 ways, for example, as 10201 + 123210000 = 101^2 + 11100^2 .

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

It is not a de Polignac number, because 123220201 - 2³ = 123220193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123220231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37921 + ... + 41041.

It is an arithmetic number, because the mean of its divisors is an integer number (16598113).

Almost surely, 2^123220201 is an apocalyptic number.

It is an amenable number.

123220201 is a deficient number, since it is larger than the sum of its proper divisors (9564703).

123220201 is a wasteful number, since it uses less digits than its factorization.

123220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 123220201 is about 11100.4594949939. The cubic root of 123220201 is about 497.6155818421.

Adding to 123220201 its reverse (102022321), we get a palindrome (225242522).

The spelling of 123220201 in words is "one hundred twenty-three million, two hundred twenty thousand, two hundred one".