5221212132212 has 18 divisors (see below), whose sum is σ = 9155324370738. Its totient is φ = 2605415489392.

The previous prime is 5221212132163. The next prime is 5221212132217. The reversal of 5221212132212 is 2122312121225.

It can be written as a sum of positive squares in only one way, i.e., 4925008423696 + 296203708516 = 2219236^2 + 544246^2 .

It is a super-2 number, since 2×5221212132212² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221212132217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1567523 + ... + 3591594.

Almost surely, 2^{5221212132212} is an apocalyptic number.

It is an amenable number.

5221212132212 is a deficient number, since it is larger than the sum of its proper divisors (3934112238526).

5221212132212 is an equidigital number, since it uses as much as digits as its factorization.

5221212132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160127 (or 5159622 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

Adding to 5221212132212 its reverse (2122312121225), we get a palindrome (7343524253437).

The spelling of 5221212132212 in words is "five trillion, two hundred twenty-one billion, two hundred twelve million, one hundred thirty-two thousand, two hundred twelve".