121202221021102 has 32 divisors (see below), whose sum is σ = 212361379673184. Its totient is φ = 51364808371200.

The previous prime is 121202221021093. The next prime is 121202221021151. The reversal of 121202221021102 is 201120122202121.

It is a self number, because there is not a number n which added to its sum of digits gives 121202221021102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3344044924 + ... + 3344081167.

It is an arithmetic number, because the mean of its divisors is an integer number (6636293114787).

Almost surely, 2^{121202221021102} is an apocalyptic number.

121202221021102 is a deficient number, since it is larger than the sum of its proper divisors (91159158652082).

121202221021102 is a wasteful number, since it uses less digits than its factorization.

121202221021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688126164.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121202221021102 its reverse (201120122202121), we get a palindrome (322322343223223).

The spelling of 121202221021102 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred twenty-one million, twenty-one thousand, one hundred two".