1021020112 has 40 divisors (see below), whose sum is σ = 2262480192. Its totient is φ = 437260800.

The previous prime is 1021020109. The next prime is 1021020149. The reversal of 1021020112 is 2110201201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213912 + ... + 218632.

Almost surely, 2^1021020112 is an apocalyptic number.

It is an amenable number.

1021020112 is an abundant number, since it is smaller than the sum of its proper divisors (1241460080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021020112 is a wasteful number, since it uses less digits than its factorization.

1021020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667 (or 6661 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1021020112 is about 31953.4053271322. The cubic root of 1021020112 is about 1006.9581754976.

Adding to 1021020112 its reverse (2110201201), we get a palindrome (3131221313).

The spelling of 1021020112 in words is "one billion, twenty-one million, twenty thousand, one hundred twelve".