2120120101020 has 48 divisors (see below), whose sum is σ = 5962259187360. Its totient is φ = 562896512256.

The previous prime is 2120120101013. The next prime is 2120120101069. The reversal of 2120120101020 is 201010210212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2120120100987 and 2120120101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77137647 + ... + 77165126.

It is an arithmetic number, because the mean of its divisors is an integer number (124213733070).

Almost surely, 2^{2120120101020} is an apocalyptic number.

2120120101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120120101020 is an abundant number, since it is smaller than the sum of its proper divisors (3842139086340).

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

2120120101020 is a wasteful number, since it uses less digits than its factorization.

2120120101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154303014 (or 154303012 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2120120101020 its reverse (201010210212), we get a palindrome (2321130311232).

The spelling of 2120120101020 in words is "two trillion, one hundred twenty billion, one hundred twenty million, one hundred one thousand, twenty".