1011021011212 has 6 divisors (see below), whose sum is σ = 1769286769628. Its totient is φ = 505510505604.

The previous prime is 1011021011191. The next prime is 1011021011251. The reversal of 1011021011212 is 2121101201101.

It is a happy number.

It is a super-2 number, since 2×1011021011212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011021011192 and 1011021011201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126377626398 + ... + 126377626405.

Almost surely, 2^{1011021011212} is an apocalyptic number.

It is an amenable number.

1011021011212 is a deficient number, since it is larger than the sum of its proper divisors (758265758416).

1011021011212 is a wasteful number, since it uses less digits than its factorization.

1011021011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252755252807 (or 252755252805 counting only the distinct ones).

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

Adding to 1011021011212 its reverse (2121101201101), we get a palindrome (3132122212313).

The spelling of 1011021011212 in words is "one trillion, eleven billion, twenty-one million, eleven thousand, two hundred twelve".