121026121 has 2 divisors, whose sum is σ = 121026122. Its totient is φ = 121026120.

The previous prime is 121026107. The next prime is 121026127. The reversal of 121026121 is 121620121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106502400 + 14523721 = 10320^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 121026121 - 2¹³ = 121017929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121026095 and 121026104.

It is not a weakly prime, because it can be changed into another prime (121026127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60513060 + 60513061.

It is an arithmetic number, because the mean of its divisors is an integer number (60513061).

Almost surely, 2^121026121 is an apocalyptic number.

It is an amenable number.

121026121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121026121 is an equidigital number, since it uses as much as digits as its factorization.

121026121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 121026121 is about 11001.1872541103. The cubic root of 121026121 is about 494.6443331553.

Adding to 121026121 its reverse (121620121), we get a palindrome (242646242).

The spelling of 121026121 in words is "one hundred twenty-one million, twenty-six thousand, one hundred twenty-one".