40221212355 has 24 divisors (see below), whose sum is σ = 70067119200. Its totient is φ = 21343512960.

The previous prime is 40221212299. The next prime is 40221212387. The reversal of 40221212355 is 55321212204.

40221212355 is a `hidden beast` number, since 402 + 2 + 1 + 21 + 235 + 5 = 666.

It is not a de Polignac number, because 40221212355 - 2³² = 35926245059 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2236786 + ... + 2254695.

It is an arithmetic number, because the mean of its divisors is an integer number (2919463300).

Almost surely, 2^40221212355 is an apocalyptic number.

40221212355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40221212355 is a deficient number, since it is larger than the sum of its proper divisors (29845906845).

40221212355 is a wasteful number, since it uses less digits than its factorization.

40221212355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491691 (or 4491688 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 40221212355 its reverse (55321212204), we get a palindrome (95542424559).

The spelling of 40221212355 in words is "forty billion, two hundred twenty-one million, two hundred twelve thousand, three hundred fifty-five".