2112155535 has 48 divisors (see below), whose sum is σ = 3957437952. Its totient is φ = 959112000.

The previous prime is 2112155509. The next prime is 2112155537. The reversal of 2112155535 is 5355512112.

It is not a de Polignac number, because 2112155535 - 2⁷ = 2112155407 is a prime.

It is a super-2 number, since 2×2112155535² = 8922402008062272450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112155537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101470 + ... + 120500.

It is an arithmetic number, because the mean of its divisors is an integer number (82446624).

Almost surely, 2^2112155535 is an apocalyptic number.

2112155535 is a deficient number, since it is larger than the sum of its proper divisors (1845282417).

2112155535 is a wasteful number, since it uses less digits than its factorization.

2112155535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19204 (or 19197 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 2112155535 is about 45958.1933391642. The cubic root of 2112155535 is about 1283.0452264179.

Adding to 2112155535 its reverse (5355512112), we get a palindrome (7467667647).

The spelling of 2112155535 in words is "two billion, one hundred twelve million, one hundred fifty-five thousand, five hundred thirty-five".