121202102002102 has 64 divisors (see below), whose sum is σ = 201624033973248. Its totient is φ = 54185114880000.

The previous prime is 121202102002099. The next prime is 121202102002139. The reversal of 121202102002102 is 201200201202121.

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 31 ways as a sum of consecutive naturals, for example, 296128083 + ... + 296537089.

It is an arithmetic number, because the mean of its divisors is an integer number (3150375530832).

Almost surely, 2^{121202102002102} is an apocalyptic number.

121202102002102 is a deficient number, since it is larger than the sum of its proper divisors (80421931971146).

121202102002102 is a wasteful number, since it uses less digits than its factorization.

121202102002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410005.

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

Adding to 121202102002102 its reverse (201200201202121), we get a palindrome (322402303204223).

The spelling of 121202102002102 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred two million, two thousand, one hundred two".