2101110020 has 24 divisors (see below), whose sum is σ = 4418332800. Its totient is φ = 839300832.

The previous prime is 2101110013. The next prime is 2101110031. The reversal of 2101110020 is 200111012.

It is a super-2 number, since 2×2101110020² = 8829326632288800800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56300 + ... + 85859.

It is an arithmetic number, because the mean of its divisors is an integer number (184097200).

Almost surely, 2^2101110020 is an apocalyptic number.

2101110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101110020 is an abundant number, since it is smaller than the sum of its proper divisors (2317222780).

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

2101110020 is a wasteful number, since it uses less digits than its factorization.

2101110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142907 (or 142905 counting only the distinct ones).

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

The square root of 2101110020 is about 45837.8666606551. The cubic root of 2101110020 is about 1280.8047551628.

Adding to 2101110020 its reverse (200111012), we get a palindrome (2301221032).

The spelling of 2101110020 in words is "two billion, one hundred one million, one hundred ten thousand, twenty".