210401012069 has 2 divisors, whose sum is σ = 210401012070. Its totient is φ = 210401012068.

The previous prime is 210401012027. The next prime is 210401012147. The reversal of 210401012069 is 960210104012.

210401012069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205000672900 + 5400339169 = 452770^2 + 73487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210401012069 is a prime.

It is a super-2 number, since 2×210401012069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210401012869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105200506034 + 105200506035.

It is an arithmetic number, because the mean of its divisors is an integer number (105200506035).

Almost surely, 2^210401012069 is an apocalyptic number.

It is an amenable number.

210401012069 is a deficient number, since it is larger than the sum of its proper divisors (1).

210401012069 is an equidigital number, since it uses as much as digits as its factorization.

210401012069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 210401012069 in words is "two hundred ten billion, four hundred one million, twelve thousand, sixty-nine".