40212201 has 4 divisors (see below), whose sum is σ = 53616272. Its totient is φ = 26808132.

The previous prime is 40212173. The next prime is 40212203. The reversal of 40212201 is 10221204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40212201 - 2²² = 36017897 is a prime.

It is a super-2 number, since 2×40212201² = 3234042218528802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40212203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6702031 + ... + 6702036.

It is an arithmetic number, because the mean of its divisors is an integer number (13404068).

Almost surely, 2^40212201 is an apocalyptic number.

It is an amenable number.

40212201 is a deficient number, since it is larger than the sum of its proper divisors (13404071).

40212201 is a wasteful number, since it uses less digits than its factorization.

40212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13404070.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 40212201 is about 6341.3090919778. The cubic root of 40212201 is about 342.5988873892.

Adding to 40212201 its reverse (10221204), we get a palindrome (50433405).

The spelling of 40212201 in words is "forty million, two hundred twelve thousand, two hundred one".