221201211102 has 8 divisors (see below), whose sum is σ = 442402422216. Its totient is φ = 73733737032.

The previous prime is 221201211079. The next prime is 221201211137. The reversal of 221201211102 is 201112102122.

It is a sphenic number, since it is the product of 3 distinct primes.

221201211102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18433434253 + ... + 18433434264.

It is an arithmetic number, because the mean of its divisors is an integer number (55300302777).

Almost surely, 2^221201211102 is an apocalyptic number.

221201211102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221201211102 is a wasteful number, since it uses less digits than its factorization.

221201211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36866868522.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221201211102 its reverse (201112102122), we get a palindrome (422313313224).

The spelling of 221201211102 in words is "two hundred twenty-one billion, two hundred one million, two hundred eleven thousand, one hundred two".