221281531871414 has 8 divisors (see below), whose sum is σ = 379339768922448. Its totient is φ = 94834942230600.

The previous prime is 221281531871401. The next prime is 221281531871473. The reversal of 221281531871414 is 414178135182122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7902911852537 + ... + 7902911852564.

It is an arithmetic number, because the mean of its divisors is an integer number (47417471115306).

Almost surely, 2^{221281531871414} is an apocalyptic number.

221281531871414 is a deficient number, since it is larger than the sum of its proper divisors (158058237051034).

221281531871414 is a wasteful number, since it uses less digits than its factorization.

221281531871414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15805823705110.

The product of its digits is 860160, while the sum is 50.

The spelling of 221281531871414 in words is "two hundred twenty-one trillion, two hundred eighty-one billion, five hundred thirty-one million, eight hundred seventy-one thousand, four hundred fourteen".