221475147074 has 4 divisors (see below), whose sum is σ = 332212720614. Its totient is φ = 110737573536.

The previous prime is 221475147071. The next prime is 221475147109. The reversal of 221475147074 is 470741574122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 218691846025 + 2783301049 = 467645^2 + 52757^2 .

It is a super-2 number, since 2×221475147074² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221475147071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55368786767 + ... + 55368786770.

Almost surely, 2^221475147074 is an apocalyptic number.

221475147074 is a deficient number, since it is larger than the sum of its proper divisors (110737573540).

221475147074 is a wasteful number, since it uses less digits than its factorization.

221475147074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110737573539.

The product of its (nonzero) digits is 439040, while the sum is 44.

The spelling of 221475147074 in words is "two hundred twenty-one billion, four hundred seventy-five million, one hundred forty-seven thousand, seventy-four".