40122111 has 8 divisors (see below), whose sum is σ = 53996544. Its totient is φ = 26497880.

The previous prime is 40122107. The next prime is 40122151. The reversal of 40122111 is 11122104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40122111 - 2² = 40122107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122101) 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, 62175 + ... + 62816.

It is an arithmetic number, because the mean of its divisors is an integer number (6749568).

Almost surely, 2^40122111 is an apocalyptic number.

40122111 is a deficient number, since it is larger than the sum of its proper divisors (13874433).

40122111 is a wasteful number, since it uses less digits than its factorization.

40122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125101.

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

The square root of 40122111 is about 6334.2016860848. The cubic root of 40122111 is about 342.3428472559.

Adding to 40122111 its reverse (11122104), we get a palindrome (51244215).

The spelling of 40122111 in words is "forty million, one hundred twenty-two thousand, one hundred eleven".