5205191212 has 36 divisors (see below), whose sum is σ = 9892394400. Its totient is φ = 2395403712.

The previous prime is 5205191209. The next prime is 5205191213. The reversal of 5205191212 is 2121915025.

It is not an unprimeable number, because it can be changed into a prime (5205191213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224893 + ... + 246955.

Almost surely, 2^5205191212 is an apocalyptic number.

5205191212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

5205191212 is a deficient number, since it is larger than the sum of its proper divisors (4687203188).

5205191212 is a wasteful number, since it uses less digits than its factorization.

5205191212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22442 (or 22427 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 5205191212 is about 72147.0111092622. The cubic root of 5205191212 is about 1733.0545357148.

It can be divided in two parts, 520519 and 1212, that added together give a triangular number (521731 = T₁₀₂₁).

The spelling of 5205191212 in words is "five billion, two hundred five million, one hundred ninety-one thousand, two hundred twelve".