221012320996 has 24 divisors (see below), whose sum is σ = 387759730176. Its totient is φ = 110224023840.

The previous prime is 221012320973. The next prime is 221012321009. The reversal of 221012320996 is 699023210122.

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, 4753341 + ... + 4799611.

It is an arithmetic number, because the mean of its divisors is an integer number (16156655424).

Almost surely, 2^221012320996 is an apocalyptic number.

It is an amenable number.

221012320996 is a deficient number, since it is larger than the sum of its proper divisors (166747409180).

221012320996 is a wasteful number, since it uses less digits than its factorization.

221012320996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49299 (or 49297 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 221012320996 in words is "two hundred twenty-one billion, twelve million, three hundred twenty thousand, nine hundred ninety-six".