210221001122029 has 2 divisors, whose sum is σ = 210221001122030. Its totient is φ = 210221001122028.

The previous prime is 210221001121961. The next prime is 210221001122047. The reversal of 210221001122029 is 920221100122012.

It is a happy number.

210221001122029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158379129105129 + 51841872016900 = 12584877^2 + 7200130^2 .

It is a cyclic number.

It is not a de Polignac number, because 210221001122029 - 2¹¹ = 210221001119981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210221001121994 and 210221001122012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210221001122059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110500561014 + 105110500561015.

It is an arithmetic number, because the mean of its divisors is an integer number (105110500561015).

Almost surely, 2^{210221001122029} is an apocalyptic number.

It is an amenable number.

210221001122029 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221001122029 is an equidigital number, since it uses as much as digits as its factorization.

210221001122029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 210221001122029 in words is "two hundred ten trillion, two hundred twenty-one billion, one million, one hundred twenty-two thousand, twenty-nine".