20212222100029 has 2 divisors, whose sum is σ = 20212222100030. Its totient is φ = 20212222100028.

The previous prime is 20212222099973. The next prime is 20212222100053. The reversal of 20212222100029 is 92000122221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18867747064804 + 1344475035225 = 4343702^2 + 1159515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212222100029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212222099976 and 20212222100012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212222100069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106111050014 + 10106111050015.

It is an arithmetic number, because the mean of its divisors is an integer number (10106111050015).

Almost surely, 2^{20212222100029} is an apocalyptic number.

It is an amenable number.

20212222100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212222100029 is an equidigital number, since it uses as much as digits as its factorization.

20212222100029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 20212222100029 in words is "twenty trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thousand, twenty-nine".