101661227 has 2 divisors, whose sum is σ = 101661228. Its totient is φ = 101661226.

The previous prime is 101661199. The next prime is 101661251. The reversal of 101661227 is 722166101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101661227 - 2¹⁸ = 101399083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101661196 and 101661205.

It is not a weakly prime, because it can be changed into another prime (101661827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50830613 + 50830614.

It is an arithmetic number, because the mean of its divisors is an integer number (50830614).

Almost surely, 2^101661227 is an apocalyptic number.

101661227 is a deficient number, since it is larger than the sum of its proper divisors (1).

101661227 is an equidigital number, since it uses as much as digits as its factorization.

101661227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 101661227 is about 10082.7192264785. The cubic root of 101661227 is about 466.7150249774.

The spelling of 101661227 in words is "one hundred one million, six hundred sixty-one thousand, two hundred twenty-seven".