1021102112 has 24 divisors (see below), whose sum is σ = 2097700416. Its totient is φ = 488352832.

The previous prime is 1021102111. The next prime is 1021102133. The reversal of 1021102112 is 2112011201.

It is a junction number, because it is equal to n+sod(n) for n = 1021102093 and 1021102102.

It is not an unprimeable number, because it can be changed into a prime (1021102111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692948 + ... + 694419.

It is an arithmetic number, because the mean of its divisors is an integer number (87404184).

Almost surely, 2^1021102112 is an apocalyptic number.

It is an amenable number.

1021102112 is an abundant number, since it is smaller than the sum of its proper divisors (1076598304).

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

1021102112 is a wasteful number, since it uses less digits than its factorization.

1021102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387400 (or 1387392 counting only the distinct ones).

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

The square root of 1021102112 is about 31954.6884196983. The cubic root of 1021102112 is about 1006.9851316627.

Adding to 1021102112 its reverse (2112011201), we get a palindrome (3133113313).

The spelling of 1021102112 in words is "one billion, twenty-one million, one hundred two thousand, one hundred twelve".