122101211 has 2 divisors, whose sum is σ = 122101212. Its totient is φ = 122101210.

The previous prime is 122101183. The next prime is 122101249. The reversal of 122101211 is 112101221.

It is a weak prime.

It is an emirp because it is prime and its reverse (112101221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122101211 - 2²² = 117906907 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 122101192 and 122101201.

It is not a weakly prime, because it can be changed into another prime (122100211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050605 + 61050606.

It is an arithmetic number, because the mean of its divisors is an integer number (61050606).

Almost surely, 2^122101211 is an apocalyptic number.

122101211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122101211 is an equidigital number, since it uses as much as digits as its factorization.

122101211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 122101211 is about 11049.9416740542. The cubic root of 122101211 is about 496.1046797682.

Adding to 122101211 its reverse (112101221), we get a palindrome (234202432).

The spelling of 122101211 in words is "one hundred twenty-two million, one hundred one thousand, two hundred eleven".