2116221107 has 64 divisors (see below), whose sum is σ = 2997485568. Its totient is φ = 1440720000.

The previous prime is 2116221103. The next prime is 2116221119. The reversal of 2116221107 is 7011226112.

It is a cyclic number.

It is not a de Polignac number, because 2116221107 - 2² = 2116221103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2116221103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1457732 + ... + 1459182.

It is an arithmetic number, because the mean of its divisors is an integer number (46835712).

Almost surely, 2^2116221107 is an apocalyptic number.

2116221107 is a deficient number, since it is larger than the sum of its proper divisors (881264461).

2116221107 is a wasteful number, since it uses less digits than its factorization.

2116221107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 2116221107 is about 46002.4032741769. The cubic root of 2116221107 is about 1283.8679198498.

Adding to 2116221107 its reverse (7011226112), we get a palindrome (9127447219).

The spelling of 2116221107 in words is "two billion, one hundred sixteen million, two hundred twenty-one thousand, one hundred seven".