211202210121073 has 2 divisors, whose sum is σ = 211202210121074. Its totient is φ = 211202210121072.

The previous prime is 211202210121061. The next prime is 211202210121103. The reversal of 211202210121073 is 370121012202112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122340234805504 + 88861975315569 = 11060752^2 + 9426663^2 .

It is a cyclic number.

It is not a de Polignac number, because 211202210121073 - 2¹⁷ = 211202209990001 is a prime.

It is not a weakly prime, because it can be changed into another prime (211202219121073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601105060536 + 105601105060537.

It is an arithmetic number, because the mean of its divisors is an integer number (105601105060537).

Almost surely, 2^{211202210121073} is an apocalyptic number.

It is an amenable number.

211202210121073 is a deficient number, since it is larger than the sum of its proper divisors (1).

211202210121073 is an equidigital number, since it uses as much as digits as its factorization.

211202210121073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 211202210121073 its reverse (370121012202112), we get a palindrome (581323222323185).

The spelling of 211202210121073 in words is "two hundred eleven trillion, two hundred two billion, two hundred ten million, one hundred twenty-one thousand, seventy-three".