420111201 has 8 divisors (see below), whose sum is σ = 560243104. Its totient is φ = 280026720.

The previous prime is 420111187. The next prime is 420111221. The reversal of 420111201 is 102111024.

It is a happy number.

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

It is not a de Polignac number, because 420111201 - 2⁶ = 420111137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420111221) 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, 27210 + ... + 39756.

It is an arithmetic number, because the mean of its divisors is an integer number (70030388).

Almost surely, 2^420111201 is an apocalyptic number.

It is an amenable number.

420111201 is a deficient number, since it is larger than the sum of its proper divisors (140131903).

420111201 is a wasteful number, since it uses less digits than its factorization.

420111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23711.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 420111201 is about 20496.6143789651. The cubic root of 420111201 is about 748.9533257546.

Adding to 420111201 its reverse (102111024), we get a palindrome (522222225).

The spelling of 420111201 in words is "four hundred twenty million, one hundred eleven thousand, two hundred one".