42201111 has 8 divisors (see below), whose sum is σ = 56848624. Its totient is φ = 27843840.

The previous prime is 42201097. The next prime is 42201139. The reversal of 42201111 is 11110224.

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 42201111 - 2⁵ = 42201079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42201151) 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, 72220 + ... + 72801.

It is an arithmetic number, because the mean of its divisors is an integer number (7106078).

Almost surely, 2^42201111 is an apocalyptic number.

42201111 is a deficient number, since it is larger than the sum of its proper divisors (14647513).

42201111 is a wasteful number, since it uses less digits than its factorization.

42201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145121.

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

The square root of 42201111 is about 6496.2382191542. The cubic root of 42201111 is about 348.1565965195.

Adding to 42201111 its reverse (11110224), we get a palindrome (53311335).

The spelling of 42201111 in words is "forty-two million, two hundred one thousand, one hundred eleven".