2120212121120 has 24 divisors (see below), whose sum is σ = 5009001136524. Its totient is φ = 848084848384.

The previous prime is 2120212121081. The next prime is 2120212121191. The reversal of 2120212121120 is 211212120212.

It can be written as a sum of positive squares in 2 ways, for example, as 1945344299536 + 174867821584 = 1394756^2 + 418172^2 .

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, 6625662719 + ... + 6625663038.

Almost surely, 2^{2120212121120} is an apocalyptic number.

2120212121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120212121120 is an abundant number, since it is smaller than the sum of its proper divisors (2888789015404).

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

2120212121120 is a wasteful number, since it uses less digits than its factorization.

2120212121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251325772 (or 13251325764 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2120212121120 its reverse (211212120212), we get a palindrome (2331424241332).

The spelling of 2120212121120 in words is "two trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty".