2112111562 has 16 divisors (see below), whose sum is σ = 3491816832. Its totient is φ = 950152320.

The previous prime is 2112111527. The next prime is 2112111563. The reversal of 2112111562 is 2651112112.

It is a super-2 number, since 2×2112111562² = 8922030500668159688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2112111563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492738 + ... + 497005.

It is an arithmetic number, because the mean of its divisors is an integer number (218238552).

Almost surely, 2^2112111562 is an apocalyptic number.

2112111562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2112111562 is a deficient number, since it is larger than the sum of its proper divisors (1379705270).

2112111562 is a wasteful number, since it uses less digits than its factorization.

2112111562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989853.

The product of its digits is 240, while the sum is 22.

The square root of 2112111562 is about 45957.7149344917. The cubic root of 2112111562 is about 1283.0363224431.

Adding to 2112111562 its reverse (2651112112), we get a palindrome (4763223674).

The spelling of 2112111562 in words is "two billion, one hundred twelve million, one hundred eleven thousand, five hundred sixty-two".