2120211202120 has 64 divisors (see below), whose sum is σ = 5255681163840. Its totient is φ = 763352352000.

The previous prime is 2120211202117. The next prime is 2120211202129. The reversal of 2120211202120 is 212021120212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120211202094 and 2120211202103.

It is not an unprimeable number, because it can be changed into a prime (2120211202129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23810322 + ... + 23899201.

It is an arithmetic number, because the mean of its divisors is an integer number (82120018185).

Almost surely, 2^{2120211202120} is an apocalyptic number.

2120211202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120211202120 is an abundant number, since it is smaller than the sum of its proper divisors (3135469961720).

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

2120211202120 is a wasteful number, since it uses less digits than its factorization.

2120211202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47709646 (or 47709642 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120211202120 its reverse (212021120212), we get a palindrome (2332232322332).

It can be divided in two parts, 212021 and 1202120, that added together give a palindrome (1414141).

The spelling of 2120211202120 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred two thousand, one hundred twenty".