201221320000102 has 4 divisors (see below), whose sum is σ = 301831980000156. Its totient is φ = 100610660000050.

The previous prime is 201221320000069. The next prime is 201221320000121. The reversal of 201221320000102 is 201000023122102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50305330000024 + ... + 50305330000027.

It is an arithmetic number, because the mean of its divisors is an integer number (75457995000039).

Almost surely, 2^{201221320000102} is an apocalyptic number.

201221320000102 is a deficient number, since it is larger than the sum of its proper divisors (100610660000054).

201221320000102 is a wasteful number, since it uses less digits than its factorization.

201221320000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100610660000053.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201221320000102 its reverse (201000023122102), we get a palindrome (402221343122204).

The spelling of 201221320000102 in words is "two hundred one trillion, two hundred twenty-one billion, three hundred twenty million, one hundred two", and thus it is an aban number.