1021101101212 has 6 divisors (see below), whose sum is σ = 1786926927128. Its totient is φ = 510550550604.

The previous prime is 1021101101201. The next prime is 1021101101213. The reversal of 1021101101212 is 2121011011201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021101101192 and 1021101101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021101101213) by changing a digit.

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, 127637637648 + ... + 127637637655.

Almost surely, 2^{1021101101212} is an apocalyptic number.

It is an amenable number.

1021101101212 is a deficient number, since it is larger than the sum of its proper divisors (765825825916).

1021101101212 is a wasteful number, since it uses less digits than its factorization.

1021101101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255275275307 (or 255275275305 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021101101212 its reverse (2121011011201), we get a palindrome (3142112112413).

The spelling of 1021101101212 in words is "one trillion, twenty-one billion, one hundred one million, one hundred one thousand, two hundred twelve".