101222201 has 2 divisors, whose sum is σ = 101222202. Its totient is φ = 101222200.

The previous prime is 101222197. The next prime is 101222213. The reversal of 101222201 is 102222101.

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., 64000000 + 37222201 = 8000^2 + 6101^2 .

It is a cyclic number.

It is not a de Polignac number, because 101222201 - 2² = 101222197 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101222501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611100 + 50611101.

It is an arithmetic number, because the mean of its divisors is an integer number (50611101).

Almost surely, 2^101222201 is an apocalyptic number.

It is an amenable number.

101222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

101222201 is an equidigital number, since it uses as much as digits as its factorization.

101222201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 101222201 is about 10060.9244605056. The cubic root of 101222201 is about 466.0422162077.

Adding to 101222201 its reverse (102222101), we get a palindrome (203444302).

The spelling of 101222201 in words is "one hundred one million, two hundred twenty-two thousand, two hundred one".