122101949 has 2 divisors, whose sum is σ = 122101950. Its totient is φ = 122101948.

The previous prime is 122101943. The next prime is 122102011. The reversal of 122101949 is 949101221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109725625 + 12376324 = 10475^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101949 - 2⁴ = 122101933 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122101943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050974 + 61050975.

It is an arithmetic number, because the mean of its divisors is an integer number (61050975).

Almost surely, 2^122101949 is an apocalyptic number.

It is an amenable number.

122101949 is a deficient number, since it is larger than the sum of its proper divisors (1).

122101949 is an equidigital number, since it uses as much as digits as its factorization.

122101949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 122101949 is about 11049.9750678452. The cubic root of 122101949 is about 496.1056792792.

The spelling of 122101949 in words is "one hundred twenty-two million, one hundred one thousand, nine hundred forty-nine".