121067621 has 2 divisors, whose sum is σ = 121067622. Its totient is φ = 121067620.

The previous prime is 121067603. The next prime is 121067633. The reversal of 121067621 is 126760121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115240225 + 5827396 = 10735^2 + 2414^2 .

It is a cyclic number.

It is not a de Polignac number, because 121067621 - 2¹⁰ = 121066597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121067641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60533810 + 60533811.

It is an arithmetic number, because the mean of its divisors is an integer number (60533811).

Almost surely, 2^121067621 is an apocalyptic number.

It is an amenable number.

121067621 is a deficient number, since it is larger than the sum of its proper divisors (1).

121067621 is an equidigital number, since it uses as much as digits as its factorization.

121067621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 121067621 is about 11003.0732525054. The cubic root of 121067621 is about 494.7008647364.

The spelling of 121067621 in words is "one hundred twenty-one million, sixty-seven thousand, six hundred twenty-one".