121212302002 has 24 divisors (see below), whose sum is σ = 201828789036. Its totient is φ = 54550980000.

The previous prime is 121212301999. The next prime is 121212302033. The reversal of 121212302002 is 200203212121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 104367117481 + 16845184521 = 323059^2 + 129789^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2455149 + ... + 2504032.

Almost surely, 2^121212302002 is an apocalyptic number.

121212302002 is a deficient number, since it is larger than the sum of its proper divisors (80616487034).

121212302002 is a wasteful number, since it uses less digits than its factorization.

121212302002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959306 (or 4959295 counting only the distinct ones).

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

Adding to 121212302002 its reverse (200203212121), we get a palindrome (321415514123).

The spelling of 121212302002 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred two thousand, two".