101001021120121 has 2 divisors, whose sum is σ = 101001021120122. Its totient is φ = 101001021120120.

The previous prime is 101001021120089. The next prime is 101001021120151. The reversal of 101001021120121 is 121021120100101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70613585369721 + 30387435750400 = 8403189^2 + 5512480^2 .

It is a cyclic number.

It is not a de Polignac number, because 101001021120121 - 2⁵ = 101001021120089 is a prime.

It is a super-2 number, since 2×101001021120121² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101001021120151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500510560060 + 50500510560061.

It is an arithmetic number, because the mean of its divisors is an integer number (50500510560061).

Almost surely, 2^{101001021120121} is an apocalyptic number.

It is an amenable number.

101001021120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001021120121 is an equidigital number, since it uses as much as digits as its factorization.

101001021120121 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 13.

Adding to 101001021120121 its reverse (121021120100101), we get a palindrome (222022141220222).

The spelling of 101001021120121 in words is "one hundred one trillion, one billion, twenty-one million, one hundred twenty thousand, one hundred twenty-one".