101211022210189 has 2 divisors, whose sum is σ = 101211022210190. Its totient is φ = 101211022210188.

The previous prime is 101211022210171. The next prime is 101211022210247. The reversal of 101211022210189 is 981012220112101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74638368422500 + 26572653787689 = 8639350^2 + 5154867^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211022210189 - 2⁷ = 101211022210061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101211022210189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211022210289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605511105094 + 50605511105095.

It is an arithmetic number, because the mean of its divisors is an integer number (50605511105095).

Almost surely, 2^{101211022210189} is an apocalyptic number.

It is an amenable number.

101211022210189 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211022210189 is an equidigital number, since it uses as much as digits as its factorization.

101211022210189 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 31.

The spelling of 101211022210189 in words is "one hundred one trillion, two hundred eleven billion, twenty-two million, two hundred ten thousand, one hundred eighty-nine".