221201201102 has 16 divisors (see below), whose sum is σ = 382956537312. Its totient is φ = 93861895200.

The previous prime is 221201201099. The next prime is 221201201113. The reversal of 221201201102 is 201102102122.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 78216833 + ... + 78219660.

It is an arithmetic number, because the mean of its divisors is an integer number (23934783582).

Almost surely, 2^221201201102 is an apocalyptic number.

221201201102 is a deficient number, since it is larger than the sum of its proper divisors (161755336210).

221201201102 is a wasteful number, since it uses less digits than its factorization.

221201201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156436603.

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

Adding to 221201201102 its reverse (201102102122), we get a palindrome (422303303224).

The spelling of 221201201102 in words is "two hundred twenty-one billion, two hundred one million, two hundred one thousand, one hundred two".