1012012100 has 36 divisors (see below), whose sum is σ = 2395711248. Its totient is φ = 368004000.

The previous prime is 1012012097. The next prime is 1012012187. The reversal of 1012012100 is 12102101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458906 + ... + 461105.

Almost surely, 2^1012012100 is an apocalyptic number.

1012012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012012100 is an abundant number, since it is smaller than the sum of its proper divisors (1383699148).

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

1012012100 is a wasteful number, since it uses less digits than its factorization.

1012012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920036 (or 920029 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1012012100 is about 31812.1376207258. The cubic root of 1012012100 is about 1003.9881071908.

Adding to 1012012100 its reverse (12102101), we get a palindrome (1024114201).

Subtracting from 1012012100 its reverse (12102101), we obtain a palindrome (999909999).

It can be divided in two parts, 101201 and 2100, that added together give a palindrome (103301).

The spelling of 1012012100 in words is "one billion, twelve million, twelve thousand, one hundred".