1011212021012 has 48 divisors (see below), whose sum is σ = 1865962060032. Its totient is φ = 478543887360.

The previous prime is 1011212021009. The next prime is 1011212021033. The reversal of 1011212021012 is 2101202121101.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 71857937 + ... + 71872007.

It is an arithmetic number, because the mean of its divisors is an integer number (38874209584).

Almost surely, 2^{1011212021012} is an apocalyptic number.

It is an amenable number.

1011212021012 is a deficient number, since it is larger than the sum of its proper divisors (854750039020).

1011212021012 is a wasteful number, since it uses less digits than its factorization.

1011212021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22248 (or 22246 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011212021012 its reverse (2101202121101), we get a palindrome (3112414142113).

The spelling of 1011212021012 in words is "one trillion, eleven billion, two hundred twelve million, twenty-one thousand, twelve".