2120211550 has 12 divisors (see below), whose sum is σ = 3943593576. Its totient is φ = 848084600.

The previous prime is 2120211529. The next prime is 2120211601. The reversal of 2120211550 is 551120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21202066 + ... + 21202165.

It is an arithmetic number, because the mean of its divisors is an integer number (328632798).

Almost surely, 2^2120211550 is an apocalyptic number.

2120211550 is a deficient number, since it is larger than the sum of its proper divisors (1823382026).

2120211550 is a wasteful number, since it uses less digits than its factorization.

2120211550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42404243 (or 42404238 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 2120211550 is about 46045.7549617769. The cubic root of 2120211550 is about 1284.6743864527.

Adding to 2120211550 its reverse (551120212), we get a palindrome (2671331762).

The spelling of 2120211550 in words is "two billion, one hundred twenty million, two hundred eleven thousand, five hundred fifty".