2112021015 has 32 divisors (see below), whose sum is σ = 3642582720. Its totient is φ = 1038790656.

The previous prime is 2112021001. The next prime is 2112021031. The reversal of 2112021015 is 5101202112.

It is not a de Polignac number, because 2112021015 - 2⁵ = 2112020983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2112020985 and 2112021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232071 + ... + 240999.

It is an arithmetic number, because the mean of its divisors is an integer number (113830710).

Almost surely, 2^2112021015 is an apocalyptic number.

2112021015 is a deficient number, since it is larger than the sum of its proper divisors (1530561705).

2112021015 is a wasteful number, since it uses less digits than its factorization.

2112021015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2112021015 is about 45956.7298118567. The cubic root of 2112021015 is about 1283.0179874346.

Adding to 2112021015 its reverse (5101202112), we get a palindrome (7213223127).

The spelling of 2112021015 in words is "two billion, one hundred twelve million, twenty-one thousand, fifteen".