1020110021012 has 12 divisors (see below), whose sum is σ = 1785230731200. Its totient is φ = 510044097816.

The previous prime is 1020110020987. The next prime is 1020110021069. The reversal of 1020110021012 is 2101200110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020110020984 and 1020110021002.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 2516012 + ... + 2893187.

It is an arithmetic number, because the mean of its divisors is an integer number (148769227600).

Almost surely, 2^{1020110021012} is an apocalyptic number.

It is an amenable number.

1020110021012 is a deficient number, since it is larger than the sum of its proper divisors (765120710188).

1020110021012 is a wasteful number, since it uses less digits than its factorization.

1020110021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456350 (or 5456348 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020110021012 its reverse (2101200110201), we get a palindrome (3121310131213).

The spelling of 1020110021012 in words is "one trillion, twenty billion, one hundred ten million, twenty-one thousand, twelve".