121212002212120 has 16 divisors (see below), whose sum is σ = 272727004977360. Its totient is φ = 48484800884832.

The previous prime is 121212002212079. The next prime is 121212002212243. The reversal of 121212002212120 is 21212200212121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515150027612 + ... + 1515150027691.

It is an arithmetic number, because the mean of its divisors is an integer number (17045437811085).

Almost surely, 2^{121212002212120} is an apocalyptic number.

121212002212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121212002212120 is an abundant number, since it is smaller than the sum of its proper divisors (151515002765240).

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

121212002212120 is a wasteful number, since it uses less digits than its factorization.

121212002212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030300055314 (or 3030300055310 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121212002212120 its reverse (21212200212121), we get a palindrome (142424202424241).

The spelling of 121212002212120 in words is "one hundred twenty-one trillion, two hundred twelve billion, two million, two hundred twelve thousand, one hundred twenty".