122120100101 has 2 divisors, whose sum is σ = 122120100102. Its totient is φ = 122120100100.

The previous prime is 122120100097. The next prime is 122120100121. The reversal of 122120100101 is 101001021221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90923356225 + 31196743876 = 301535^2 + 176626^2 .

It is a cyclic number.

It is not a de Polignac number, because 122120100101 - 2² = 122120100097 is a prime.

It is a Sophie Germain 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 (122120100121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060050050 + 61060050051.

It is an arithmetic number, because the mean of its divisors is an integer number (61060050051).

Almost surely, 2^122120100101 is an apocalyptic number.

It is an amenable number.

122120100101 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120100101 is an equidigital number, since it uses as much as digits as its factorization.

122120100101 is an evil number, because the sum of its binary digits is even.

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

Adding to 122120100101 its reverse (101001021221), we get a palindrome (223121121322).

The spelling of 122120100101 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred thousand, one hundred one".