2111212115 has 8 divisors (see below), whose sum is σ = 2558051808. Its totient is φ = 1672571520.

The previous prime is 2111212097. The next prime is 2111212157. The reversal of 2111212115 is 5112121112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111212115 - 2⁸ = 2111211859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111212093 and 2111212102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049206 + ... + 2050235.

It is an arithmetic number, because the mean of its divisors is an integer number (319756476).

Almost surely, 2^2111212115 is an apocalyptic number.

2111212115 is a deficient number, since it is larger than the sum of its proper divisors (446839693).

2111212115 is a wasteful number, since it uses less digits than its factorization.

2111212115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099549.

The product of its digits is 40, while the sum is 17.

The square root of 2111212115 is about 45947.9282993260. The cubic root of 2111212115 is about 1282.8541687088.

Adding to 2111212115 its reverse (5112121112), we get a palindrome (7223333227).

The spelling of 2111212115 in words is "two billion, one hundred eleven million, two hundred twelve thousand, one hundred fifteen".