5012221691 has 2 divisors, whose sum is σ = 5012221692. Its totient is φ = 5012221690.

The previous prime is 5012221661. The next prime is 5012221723. The reversal of 5012221691 is 1961222105.

5012221691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5012221691 is a prime.

It is not a weakly prime, because it can be changed into another prime (5012221661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506110845 + 2506110846.

It is an arithmetic number, because the mean of its divisors is an integer number (2506110846).

Almost surely, 2^5012221691 is an apocalyptic number.

5012221691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5012221691 is an equidigital number, since it uses as much as digits as its factorization.

5012221691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 5012221691 is about 70797.0457787611. The cubic root of 5012221691 is about 1711.3680661976.

Adding to 5012221691 its reverse (1961222105), we get a palindrome (6973443796).

The spelling of 5012221691 in words is "five billion, twelve million, two hundred twenty-one thousand, six hundred ninety-one".