10212121131212 has 48 divisors (see below), whose sum is σ = 23994913996032. Its totient is φ = 3672690914880.

The previous prime is 10212121131193. The next prime is 10212121131239. The reversal of 10212121131212 is 21213112121201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275235898 + ... + 1275243905.

It is an arithmetic number, because the mean of its divisors is an integer number (499894041584).

Almost surely, 2^{10212121131212} is an apocalyptic number.

It is an amenable number.

10212121131212 is an abundant number, since it is smaller than the sum of its proper divisors (13782792864820).

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

10212121131212 is a wasteful number, since it uses less digits than its factorization.

10212121131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550479838 (or 2550479836 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 10212121131212 its reverse (21213112121201), we get a palindrome (31425233252413).

The spelling of 10212121131212 in words is "ten trillion, two hundred twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, two hundred twelve".