40121211 has 8 divisors (see below), whose sum is σ = 57610000. Its totient is φ = 24689952.

The previous prime is 40121203. The next prime is 40121219. The reversal of 40121211 is 11212104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40121203) and next prime (40121219).

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

It is not a de Polignac number, because 40121211 - 2³ = 40121203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40121219) 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, 514336 + ... + 514413.

It is an arithmetic number, because the mean of its divisors is an integer number (7201250).

Almost surely, 2^40121211 is an apocalyptic number.

40121211 is a deficient number, since it is larger than the sum of its proper divisors (17488789).

40121211 is a wasteful number, since it uses less digits than its factorization.

40121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028765.

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

The square root of 40121211 is about 6334.1306427954. The cubic root of 40121211 is about 342.3402874797.

Adding to 40121211 its reverse (11212104), we get a palindrome (51333315).

It can be divided in two parts, 401 and 21211, that added together give a palindrome (21612).

The spelling of 40121211 in words is "forty million, one hundred twenty-one thousand, two hundred eleven".