1021122312212 has 12 divisors (see below), whose sum is σ = 1787032949856. Its totient is φ = 510541469400.

The previous prime is 1021122312149. The next prime is 1021122312289. The reversal of 1021122312212 is 2122132211201.

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 3 ways as a sum of consecutive naturals, for example, 4804664 + ... + 5012687.

It is an arithmetic number, because the mean of its divisors is an integer number (148919412488).

Almost surely, 2^{1021122312212} is an apocalyptic number.

It is an amenable number.

1021122312212 is a deficient number, since it is larger than the sum of its proper divisors (765910637644).

1021122312212 is a wasteful number, since it uses less digits than its factorization.

1021122312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9843358 (or 9843356 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1021122312212 its reverse (2122132211201), we get a palindrome (3143254523413).

The spelling of 1021122312212 in words is "one trillion, twenty-one billion, one hundred twenty-two million, three hundred twelve thousand, two hundred twelve".