221100236540474 has 16 divisors (see below), whose sum is σ = 342349836028416. Its totient is φ = 106983647086800.

The previous prime is 221100236540413. The next prime is 221100236540507. The reversal of 221100236540474 is 474045632001122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14711504 + ... + 25663764.

It is an arithmetic number, because the mean of its divisors is an integer number (21396864751776).

Almost surely, 2^{221100236540474} is an apocalyptic number.

221100236540474 is a deficient number, since it is larger than the sum of its proper divisors (121249599487942).

221100236540474 is a wasteful number, since it uses less digits than its factorization.

221100236540474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277901.

The product of its (nonzero) digits is 322560, while the sum is 41.

Adding to 221100236540474 its reverse (474045632001122), we get a palindrome (695145868541596).

The spelling of 221100236540474 in words is "two hundred twenty-one trillion, one hundred billion, two hundred thirty-six million, five hundred forty thousand, four hundred seventy-four".