221101122002 has 12 divisors (see below), whose sum is σ = 350025738606. Its totient is φ = 104732110080.

The previous prime is 221101121981. The next prime is 221101122017. The reversal of 221101122002 is 200221101122.

It can be written as a sum of positive squares in only one way, i.e., 161315492881 + 59785629121 = 401641^2 + 244511^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153116399 + ... + 153117842.

Almost surely, 2^221101122002 is an apocalyptic number.

221101122002 is a deficient number, since it is larger than the sum of its proper divisors (128924616604).

221101122002 is a wasteful number, since it uses less digits than its factorization.

221101122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306234281 (or 306234262 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221101122002 its reverse (200221101122), we get a palindrome (421322223124).

The spelling of 221101122002 in words is "two hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, two".