212013231229 has 2 divisors, whose sum is σ = 212013231230. Its totient is φ = 212013231228.

The previous prime is 212013231187. The next prime is 212013231253. The reversal of 212013231229 is 922132310212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189982656900 + 22030574329 = 435870^2 + 148427^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013231229 - 2⁹ = 212013230717 is a prime.

It is a super-2 number, since 2×212013231229² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212013231197 and 212013231206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013231289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006615614 + 106006615615.

It is an arithmetic number, because the mean of its divisors is an integer number (106006615615).

Almost surely, 2^212013231229 is an apocalyptic number.

It is an amenable number.

212013231229 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013231229 is an equidigital number, since it uses as much as digits as its factorization.

212013231229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 212013231229 in words is "two hundred twelve billion, thirteen million, two hundred thirty-one thousand, two hundred twenty-nine".