2161150112 has 48 divisors (see below), whose sum is σ = 4645317600. Its totient is φ = 981546240.

The previous prime is 2161150111. The next prime is 2161150133. The reversal of 2161150112 is 2110511612.

It is a super-2 number, since 2×2161150112² = 9341139613195225088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2161150111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811439 + ... + 814097.

It is an arithmetic number, because the mean of its divisors is an integer number (96777450).

Almost surely, 2^2161150112 is an apocalyptic number.

2161150112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2161150112 is an abundant number, since it is smaller than the sum of its proper divisors (2484167488).

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

2161150112 is a wasteful number, since it uses less digits than its factorization.

2161150112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4981 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 2161150112 is about 46488.1717429283. The cubic root of 2161150112 is about 1292.8902030503.

Adding to 2161150112 its reverse (2110511612), we get a palindrome (4271661724).

The spelling of 2161150112 in words is "two billion, one hundred sixty-one million, one hundred fifty thousand, one hundred twelve".