2111101110020 has 24 divisors (see below), whose sum is σ = 5066642664384. Its totient is φ = 723806094816.

The previous prime is 2111101110011. The next prime is 2111101110023. The reversal of 2111101110020 is 200111011112.

It is a super-2 number, since 2×2111101110020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2111101109983 and 2111101110010.

It is not an unprimeable number, because it can be changed into a prime (2111101110023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7539646682 + ... + 7539646961.

It is an arithmetic number, because the mean of its divisors is an integer number (211110111016).

Almost surely, 2^{2111101110020} is an apocalyptic number.

2111101110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111101110020 is an abundant number, since it is smaller than the sum of its proper divisors (2955541554364).

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

2111101110020 is a wasteful number, since it uses less digits than its factorization.

2111101110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079293659 (or 15079293657 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2111101110020 its reverse (200111011112), we get a palindrome (2311212121132).

The spelling of 2111101110020 in words is "two trillion, one hundred eleven billion, one hundred one million, one hundred ten thousand, twenty".