2111200202120 has 16 divisors (see below), whose sum is σ = 4750200454860. Its totient is φ = 844480080832.

The previous prime is 2111200202051. The next prime is 2111200202131. The reversal of 2111200202120 is 212020021112.

It can be written as a sum of positive squares in 2 ways, for example, as 2009243880484 + 101956321636 = 1417478^2 + 319306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2111200202095 and 2111200202104.

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, 26390002487 + ... + 26390002566.

Almost surely, 2^{2111200202120} is an apocalyptic number.

2111200202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111200202120 is an abundant number, since it is smaller than the sum of its proper divisors (2639000252740).

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

2111200202120 is a wasteful number, since it uses less digits than its factorization.

2111200202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52780005064 (or 52780005060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111200202120 its reverse (212020021112), we get a palindrome (2323220223232).

The spelling of 2111200202120 in words is "two trillion, one hundred eleven billion, two hundred million, two hundred two thousand, one hundred twenty".