1212021010312 has 16 divisors (see below), whose sum is σ = 2597187879360. Its totient is φ = 519437575824.

The previous prime is 1212021010309. The next prime is 1212021010331. The reversal of 1212021010312 is 2130101202121.

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, 10821616108 + ... + 10821616219.

It is an arithmetic number, because the mean of its divisors is an integer number (162324242460).

Almost surely, 2^{1212021010312} is an apocalyptic number.

It is an amenable number.

1212021010312 is an abundant number, since it is smaller than the sum of its proper divisors (1385166869048).

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

1212021010312 is a wasteful number, since it uses less digits than its factorization.

1212021010312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21643232340 (or 21643232336 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212021010312 its reverse (2130101202121), we get a palindrome (3342122212433).

The spelling of 1212021010312 in words is "one trillion, two hundred twelve billion, twenty-one million, ten thousand, three hundred twelve".