2112135550 has 48 divisors (see below), whose sum is σ = 4493855232. Its totient is φ = 723506400.

The previous prime is 2112135523. The next prime is 2112135559. The reversal of 2112135550 is 555312112.

It is a super-2 number, since 2×2112135550² = 8922233163147605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112135559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538095 + ... + 542005.

It is an arithmetic number, because the mean of its divisors is an integer number (93621984).

Almost surely, 2^2112135550 is an apocalyptic number.

2112135550 is an abundant number, since it is smaller than the sum of its proper divisors (2381719682).

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

2112135550 is a wasteful number, since it uses less digits than its factorization.

2112135550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473 (or 5468 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2112135550 is about 45957.9759127836. The cubic root of 2112135550 is about 1283.0411797242.

Adding to 2112135550 its reverse (555312112), we get a palindrome (2667447662).

The spelling of 2112135550 in words is "two billion, one hundred twelve million, one hundred thirty-five thousand, five hundred fifty".