121212120212030 has 16 divisors (see below), whose sum is σ = 218181941771184. Its totient is φ = 48484820220480.

The previous prime is 121212120212021. The next prime is 121212120212039. The reversal of 121212120212030 is 30212021212121.

It is an interprime number because it is at equal distance from previous prime (121212120212021) and next prime (121212120212039).

It is a super-2 number, since 2×121212120212030² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121212120211993 and 121212120212011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212120212039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32019674 + ... + 35604546.

It is an arithmetic number, because the mean of its divisors is an integer number (13636371360699).

Almost surely, 2^{121212120212030} is an apocalyptic number.

121212120212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121212120212030 is a deficient number, since it is larger than the sum of its proper divisors (96969821559154).

121212120212030 is a wasteful number, since it uses less digits than its factorization.

121212120212030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966091.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121212120212030 its reverse (30212021212121), we get a palindrome (151424141424151).

The spelling of 121212120212030 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred twenty million, two hundred twelve thousand, thirty".