1021201121212 has 24 divisors (see below), whose sum is σ = 1887651594752. Its totient is φ = 482638186800.

The previous prime is 1021201121203. The next prime is 1021201121309. The reversal of 1021201121212 is 2121211021201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95756214 + ... + 95766877.

Almost surely, 2^{1021201121212} is an apocalyptic number.

It is an amenable number.

1021201121212 is a deficient number, since it is larger than the sum of its proper divisors (866450473540).

1021201121212 is a wasteful number, since it uses less digits than its factorization.

1021201121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191523169 (or 191523167 counting only the distinct ones).

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

Adding to 1021201121212 its reverse (2121211021201), we get a palindrome (3142412142413).

The spelling of 1021201121212 in words is "one trillion, twenty-one billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".