20212111212229 has 2 divisors, whose sum is σ = 20212111212230. Its totient is φ = 20212111212228.

The previous prime is 20212111212191. The next prime is 20212111212233. The reversal of 20212111212229 is 92221211121202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19578014337025 + 634096875204 = 4424705^2 + 796302^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212111212229 - 2¹⁷ = 20212111081157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212111212197 and 20212111212206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212111212269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106055606114 + 10106055606115.

It is an arithmetic number, because the mean of its divisors is an integer number (10106055606115).

Almost surely, 2^{20212111212229} is an apocalyptic number.

It is an amenable number.

20212111212229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212111212229 is an equidigital number, since it uses as much as digits as its factorization.

20212111212229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 20212111212229 in words is "twenty trillion, two hundred twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-nine".