5216420122 has 4 divisors (see below), whose sum is σ = 7824630186. Its totient is φ = 2608210060.

The previous prime is 5216420081. The next prime is 5216420123. The reversal of 5216420122 is 2210246125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5166590641 + 49829481 = 71879^2 + 7059^2 .

It is a super-2 number, since 2×5216420122² = 54422077778412989768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5216420123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304105029 + ... + 1304105032.

Almost surely, 2^5216420122 is an apocalyptic number.

5216420122 is a deficient number, since it is larger than the sum of its proper divisors (2608210064).

5216420122 is a wasteful number, since it uses less digits than its factorization.

5216420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608210063.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 5216420122 is about 72224.7888331977. The cubic root of 5216420122 is about 1734.2998525380.

Adding to 5216420122 its reverse (2210246125), we get a palindrome (7426666247).

The spelling of 5216420122 in words is "five billion, two hundred sixteen million, four hundred twenty thousand, one hundred twenty-two".