201221210200102 has 16 divisors (see below), whose sum is σ = 305781827285232. Its totient is φ = 99300219263200.

The previous prime is 201221210200099. The next prime is 201221210200111. The reversal of 201221210200102 is 201002012122102.

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, 1571141968 + ... + 1571270035.

It is an arithmetic number, because the mean of its divisors is an integer number (19111364205327).

Almost surely, 2^{201221210200102} is an apocalyptic number.

201221210200102 is a deficient number, since it is larger than the sum of its proper divisors (104560617085130).

201221210200102 is a wasteful number, since it uses less digits than its factorization.

201221210200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142412423.

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

Adding to 201221210200102 its reverse (201002012122102), we get a palindrome (402223222322204).

The spelling of 201221210200102 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred ten million, two hundred thousand, one hundred two".