221534461474347 has 32 divisors (see below), whose sum is σ = 341205876278784. Its totient is φ = 125232149952000.

The previous prime is 221534461474321. The next prime is 221534461474373. The reversal of 221534461474347 is 743474164435122.

It is an interprime number because it is at equal distance from previous prime (221534461474321) and next prime (221534461474373).

It is not a de Polignac number, because 221534461474347 - 2⁸ = 221534461474091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221534461474247) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 41479054 + ... + 46514307.

It is an arithmetic number, because the mean of its divisors is an integer number (10662683633712).

Almost surely, 2^{221534461474347} is an apocalyptic number.

221534461474347 is a deficient number, since it is larger than the sum of its proper divisors (119671414804437).

221534461474347 is a wasteful number, since it uses less digits than its factorization.

221534461474347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87994659.

The product of its digits is 54190080, while the sum is 57.

The spelling of 221534461474347 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred sixty-one million, four hundred seventy-four thousand, three hundred forty-seven".