2111120211020 has 24 divisors (see below), whose sum is σ = 4436345991168. Its totient is φ = 843877884800.

The previous prime is 2111120210999. The next prime is 2111120211041. The reversal of 2111120211020 is 201120211112.

It is an interprime number because it is at equal distance from previous prime (2111120210999) and next prime (2111120211041).

It is a junction number, because it is equal to n+sod(n) for n = 2111120210986 and 2111120211004.

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, 35607116 + ... + 35666355.

It is an arithmetic number, because the mean of its divisors is an integer number (184847749632).

Almost surely, 2^{2111120211020} is an apocalyptic number.

2111120211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111120211020 is an abundant number, since it is smaller than the sum of its proper divisors (2325225780148).

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

2111120211020 is a wasteful number, since it uses less digits than its factorization.

2111120211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71274961 (or 71274959 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111120211020 its reverse (201120211112), we get a palindrome (2312240422132).

The spelling of 2111120211020 in words is "two trillion, one hundred eleven billion, one hundred twenty million, two hundred eleven thousand, twenty".