20210211112120 has 64 divisors (see below), whose sum is σ = 46051125566400. Its totient is φ = 7981748044800.

The previous prime is 20210211112051. The next prime is 20210211112151. The reversal of 20210211112120 is 2121111201202.

It is a junction number, because it is equal to n+sod(n) for n = 20210211112094 and 20210211112103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5516949 + ... + 8417668.

It is an arithmetic number, because the mean of its divisors is an integer number (719548836975).

Almost surely, 2^{20210211112120} is an apocalyptic number.

20210211112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210211112120 is an abundant number, since it is smaller than the sum of its proper divisors (25840914454280).

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

20210211112120 is a wasteful number, since it uses less digits than its factorization.

20210211112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935088 (or 13935084 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20210211112120 its reverse (2121111201202), we get a palindrome (22331322313322).

The spelling of 20210211112120 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty".