20012220202229 has 2 divisors, whose sum is σ = 20012220202230. Its totient is φ = 20012220202228.

The previous prime is 20012220202189. The next prime is 20012220202241. The reversal of 20012220202229 is 92220202221002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19557418330129 + 454801872100 = 4422377^2 + 674390^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012220202229 - 2¹² = 20012220198133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012220202198 and 20012220202207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012220201229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006110101114 + 10006110101115.

It is an arithmetic number, because the mean of its divisors is an integer number (10006110101115).

Almost surely, 2^{20012220202229} is an apocalyptic number.

It is an amenable number.

20012220202229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012220202229 is an equidigital number, since it uses as much as digits as its factorization.

20012220202229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 20012220202229 in words is "twenty trillion, twelve billion, two hundred twenty million, two hundred two thousand, two hundred twenty-nine".