221258312196 has 24 divisors (see below), whose sum is σ = 516307911840. Its totient is φ = 73747268352.

The previous prime is 221258312173. The next prime is 221258312227. The reversal of 221258312196 is 691213852122.

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, 518586 + ... + 843473.

It is an arithmetic number, because the mean of its divisors is an integer number (21512829660).

Almost surely, 2^221258312196 is an apocalyptic number.

It is an amenable number.

221258312196 is an abundant number, since it is smaller than the sum of its proper divisors (295049599644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221258312196 is a wasteful number, since it uses less digits than its factorization.

221258312196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375603 (or 1375601 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The spelling of 221258312196 in words is "two hundred twenty-one billion, two hundred fifty-eight million, three hundred twelve thousand, one hundred ninety-six".