40221214155455 has 16 divisors (see below), whose sum is σ = 48834782254080. Its totient is φ = 31799392837632.

The previous prime is 40221214155431. The next prime is 40221214155457. The reversal of 40221214155455 is 55455141212204.

It is a cyclic number.

It is not a de Polignac number, because 40221214155455 - 2⁶ = 40221214155391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221214155457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123067340 + ... + 123393729.

It is an arithmetic number, because the mean of its divisors is an integer number (3052173890880).

Almost surely, 2^{40221214155455} is an apocalyptic number.

40221214155455 is a deficient number, since it is larger than the sum of its proper divisors (8613568098625).

40221214155455 is a wasteful number, since it uses less digits than its factorization.

40221214155455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246461458.

The product of its (nonzero) digits is 320000, while the sum is 41.

Adding to 40221214155455 its reverse (55455141212204), we get a palindrome (95676355367659).

The spelling of 40221214155455 in words is "forty trillion, two hundred twenty-one billion, two hundred fourteen million, one hundred fifty-five thousand, four hundred fifty-five".