2120110101020 has 48 divisors (see below), whose sum is σ = 4597936939008. Its totient is φ = 820315394880.

The previous prime is 2120110100971. The next prime is 2120110101023. The reversal of 2120110101020 is 201010110212.

It is a junction number, because it is equal to n+sod(n) for n = 2120110100992 and 2120110101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120110101023) by changing a digit.

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, 593639 + ... + 2143041.

It is an arithmetic number, because the mean of its divisors is an integer number (95790352896).

Almost surely, 2^{2120110101020} is an apocalyptic number.

2120110101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120110101020 is an abundant number, since it is smaller than the sum of its proper divisors (2477826837988).

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

2120110101020 is a wasteful number, since it uses less digits than its factorization.

2120110101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551650 (or 1551648 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2120110101020 its reverse (201010110212), we get a palindrome (2321120211232).

The spelling of 2120110101020 in words is "two trillion, one hundred twenty billion, one hundred ten million, one hundred one thousand, twenty".