1021102020112 has 20 divisors (see below), whose sum is σ = 2020478466816. Its totient is φ = 499688222240.

The previous prime is 1021102020097. The next prime is 1021102020139. The reversal of 1021102020112 is 2110202011201.

It is a junction number, because it is equal to n+sod(n) for n = 1021102020092 and 1021102020101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678923464 + ... + 678924967.

Almost surely, 2^{1021102020112} is an apocalyptic number.

It is an amenable number.

1021102020112 is a deficient number, since it is larger than the sum of its proper divisors (999376446704).

1021102020112 is a wasteful number, since it uses less digits than its factorization.

1021102020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357848486 (or 1357848480 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021102020112 its reverse (2110202011201), we get a palindrome (3131304031313).

The spelling of 1021102020112 in words is "one trillion, twenty-one billion, one hundred two million, twenty thousand, one hundred twelve".