221534407470513 has 8 divisors (see below), whose sum is σ = 295443131037376. Its totient is φ = 147657644442000.

The previous prime is 221534407470511. The next prime is 221534407470527. The reversal of 221534407470513 is 315074704435122.

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

It is not a de Polignac number, because 221534407470513 - 2¹ = 221534407470511 is a prime.

It is a super-2 number, since 2×221534407470513² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221534407470511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7990118413 + ... + 7990146138.

It is an arithmetic number, because the mean of its divisors is an integer number (36930391379672).

Almost surely, 2^{221534407470513} is an apocalyptic number.

It is an amenable number.

221534407470513 is a deficient number, since it is larger than the sum of its proper divisors (73908723566863).

221534407470513 is a wasteful number, since it uses less digits than its factorization.

221534407470513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980269175.

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 221534407470513 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred seven million, four hundred seventy thousand, five hundred thirteen".