221201000221102 has 16 divisors (see below), whose sum is σ = 361965834997632. Its totient is φ = 100545753105720.

The previous prime is 221201000221079. The next prime is 221201000221127. The reversal of 221201000221102 is 201122000102122.

It is a happy number.

It is a congruent number.

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, 7342873 + ... + 22278235.

It is an arithmetic number, because the mean of its divisors is an integer number (22622864687352).

Almost surely, 2^{221201000221102} is an apocalyptic number.

221201000221102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221201000221102 is a deficient number, since it is larger than the sum of its proper divisors (140764834776530).

221201000221102 is a wasteful number, since it uses less digits than its factorization.

221201000221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15608583.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221201000221102 its reverse (201122000102122), we get a palindrome (422323000323224).

The spelling of 221201000221102 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred twenty-one thousand, one hundred two".