5211020101 has 24 divisors (see below), whose sum is σ = 6155023704. Its totient is φ = 4398105600.

The previous prime is 5211020057. The next prime is 5211020107. The reversal of 5211020101 is 1010201125.

It can be written as a sum of positive squares in 4 ways, for example, as 286489476 + 4924530625 = 16926^2 + 70175^2 .

It is not a de Polignac number, because 5211020101 - 2¹⁵ = 5210987333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211020107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4295371 + ... + 4296583.

It is an arithmetic number, because the mean of its divisors is an integer number (256459321).

Almost surely, 2^5211020101 is an apocalyptic number.

It is an amenable number.

5211020101 is a deficient number, since it is larger than the sum of its proper divisors (944003603).

5211020101 is a wasteful number, since it uses less digits than its factorization.

5211020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 5211020101 is about 72187.3957211368. The cubic root of 5211020101 is about 1733.7011987427.

Adding to 5211020101 its reverse (1010201125), we get a palindrome (6221221226).

The spelling of 5211020101 in words is "five billion, two hundred eleven million, twenty thousand, one hundred one".