1021210211212 has 6 divisors (see below), whose sum is σ = 1787117869628. Its totient is φ = 510605105604.

The previous prime is 1021210211209. The next prime is 1021210211227. The reversal of 1021210211212 is 2121120121201.

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 as a sum of consecutive naturals, namely, 127651276398 + ... + 127651276405.

Almost surely, 2^{1021210211212} is an apocalyptic number.

It is an amenable number.

1021210211212 is a deficient number, since it is larger than the sum of its proper divisors (765907658416).

1021210211212 is a wasteful number, since it uses less digits than its factorization.

1021210211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255302552807 (or 255302552805 counting only the distinct ones).

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

Adding to 1021210211212 its reverse (2121120121201), we get a palindrome (3142330332413).

The spelling of 1021210211212 in words is "one trillion, twenty-one billion, two hundred ten million, two hundred eleven thousand, two hundred twelve".