121212002112130 has 16 divisors (see below), whose sum is σ = 218829026964600. Its totient is φ = 48340929030912.

The previous prime is 121212002112079. The next prime is 121212002112137. The reversal of 121212002112130 is 31211200212121.

It can be written as a sum of positive squares in 4 ways, for example, as 65039660290089 + 56172341822041 = 8064717^2 + 7494821^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121212002112098 and 121212002112107.

It is not an unprimeable number, because it can be changed into a prime (121212002112137) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 17983973205 + ... + 17983979944.

Almost surely, 2^{121212002112130} is an apocalyptic number.

121212002112130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121212002112130 is a deficient number, since it is larger than the sum of its proper divisors (97617024852470).

121212002112130 is a wasteful number, since it uses less digits than its factorization.

121212002112130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35967953493.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121212002112130 its reverse (31211200212121), we get a palindrome (152423202324251).

The spelling of 121212002112130 in words is "one hundred twenty-one trillion, two hundred twelve billion, two million, one hundred twelve thousand, one hundred thirty".