5201621212 has 24 divisors (see below), whose sum is σ = 9501359616. Its totient is φ = 2487012528.

The previous prime is 5201621197. The next prime is 5201621213. The reversal of 5201621212 is 2121261025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201621213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451273 + ... + 462655.

It is an arithmetic number, because the mean of its divisors is an integer number (395889984).

Almost surely, 2^5201621212 is an apocalyptic number.

It is an amenable number.

5201621212 is a deficient number, since it is larger than the sum of its proper divisors (4299738404).

5201621212 is a wasteful number, since it uses less digits than its factorization.

5201621212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377 (or 16375 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 5201621212 is about 72122.2657159355. The cubic root of 5201621212 is about 1732.6582377730.

Adding to 5201621212 its reverse (2121261025), we get a palindrome (7322882237).

The spelling of 5201621212 in words is "five billion, two hundred one million, six hundred twenty-one thousand, two hundred twelve".