221657225271676 has 12 divisors (see below), whose sum is σ = 389931035034240. Its totient is φ = 110248358119040.

The previous prime is 221657225271667. The next prime is 221657225271721. The reversal of 221657225271676 is 676172522756122.

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, 145063628341 + ... + 145063629868.

It is an arithmetic number, because the mean of its divisors is an integer number (32494252919520).

Almost surely, 2^{221657225271676} is an apocalyptic number.

It is an amenable number.

221657225271676 is a deficient number, since it is larger than the sum of its proper divisors (168273809762564).

221657225271676 is a wasteful number, since it uses less digits than its factorization.

221657225271676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290127258404 (or 290127258402 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 61.

The spelling of 221657225271676 in words is "two hundred twenty-one trillion, six hundred fifty-seven billion, two hundred twenty-five million, two hundred seventy-one thousand, six hundred seventy-six".