221102202001202 has 4 divisors (see below), whose sum is σ = 331653303001806. Its totient is φ = 110551101000600.

The previous prime is 221102202001181. The next prime is 221102202001231. The reversal of 221102202001202 is 202100202201122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 179146151933401 + 41956050067801 = 13384549^2 + 6477349^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55275550500299 + ... + 55275550500302.

Almost surely, 2^{221102202001202} is an apocalyptic number.

221102202001202 is a deficient number, since it is larger than the sum of its proper divisors (110551101000604).

221102202001202 is a wasteful number, since it uses less digits than its factorization.

221102202001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110551101000603.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221102202001202 its reverse (202100202201122), we get a palindrome (423202404202324).

The spelling of 221102202001202 in words is "two hundred twenty-one trillion, one hundred two billion, two hundred two million, one thousand, two hundred two".