2120110020020 has 12 divisors (see below), whose sum is σ = 4452231042084. Its totient is φ = 848044008000.

The previous prime is 2120110019971. The next prime is 2120110020073. The reversal of 2120110020020 is 200200110212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 938162713744 + 1181947306276 = 968588^2 + 1087174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2120110019983 and 2120110020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53002750481 + ... + 53002750520.

It is an arithmetic number, because the mean of its divisors is an integer number (371019253507).

Almost surely, 2^{2120110020020} is an apocalyptic number.

2120110020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120110020020 is an abundant number, since it is smaller than the sum of its proper divisors (2332121022064).

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

2120110020020 is a wasteful number, since it uses less digits than its factorization.

2120110020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106005501010 (or 106005501008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2120110020020 its reverse (200200110212), we get a palindrome (2320310130232).

The spelling of 2120110020020 in words is "two trillion, one hundred twenty billion, one hundred ten million, twenty thousand, twenty".