121212001010212 has 96 divisors (see below), whose sum is σ = 256883434536960. Its totient is φ = 48920367450240.

The previous prime is 121212001010197. The next prime is 121212001010231. The reversal of 121212001010212 is 212010100212121.

121212001010212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 76406637 + ... + 77976907.

It is an arithmetic number, because the mean of its divisors is an integer number (2675869109760).

Almost surely, 2^{121212001010212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121212001010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128441717268480).

121212001010212 is an abundant number, since it is smaller than the sum of its proper divisors (135671433526748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121212001010212 is a wasteful number, since it uses less digits than its factorization.

121212001010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572161 (or 1572159 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121212001010212 its reverse (212010100212121), we get a palindrome (333222101222333).

The spelling of 121212001010212 in words is "one hundred twenty-one trillion, two hundred twelve billion, one million, ten thousand, two hundred twelve".