5211522101 has 2 divisors, whose sum is σ = 5211522102. Its totient is φ = 5211522100.

The previous prime is 5211522079. The next prime is 5211522131. The reversal of 5211522101 is 1012251125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2986513201 + 2225008900 = 54649^2 + 47170^2 .

It is a cyclic number.

It is not a de Polignac number, because 5211522101 - 2¹⁸ = 5211259957 is a prime.

It is a super-2 number, since 2×5211522101² = 54319925218422908402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5211522131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605761050 + 2605761051.

It is an arithmetic number, because the mean of its divisors is an integer number (2605761051).

Almost surely, 2^5211522101 is an apocalyptic number.

It is an amenable number.

5211522101 is a deficient number, since it is larger than the sum of its proper divisors (1).

5211522101 is an equidigital number, since it uses as much as digits as its factorization.

5211522101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 5211522101 is about 72190.8726987006. The cubic root of 5211522101 is about 1733.7568685885.

Adding to 5211522101 its reverse (1012251125), we get a palindrome (6223773226).

The spelling of 5211522101 in words is "five billion, two hundred eleven million, five hundred twenty-two thousand, one hundred one".