1021021211212 has 6 divisors (see below), whose sum is σ = 1786787119628. Its totient is φ = 510510605604.

The previous prime is 1021021211053. The next prime is 1021021211219. The reversal of 1021021211212 is 2121121201201.

It is not an unprimeable number, because it can be changed into a prime (1021021211219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127627651398 + ... + 127627651405.

Almost surely, 2^{1021021211212} is an apocalyptic number.

It is an amenable number.

1021021211212 is a deficient number, since it is larger than the sum of its proper divisors (765765908416).

1021021211212 is a wasteful number, since it uses less digits than its factorization.

1021021211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255255302807 (or 255255302805 counting only the distinct ones).

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

Adding to 1021021211212 its reverse (2121121201201), we get a palindrome (3142142412413).

The spelling of 1021021211212 in words is "one trillion, twenty-one billion, twenty-one million, two hundred eleven thousand, two hundred twelve".