121226089 has 4 divisors (see below), whose sum is σ = 125136640. Its totient is φ = 117315540.

The previous prime is 121226087. The next prime is 121226101. The reversal of 121226089 is 980622121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121226089 - 2¹ = 121226087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 3910519 = 121226089 / (1 + 2 + 1 + 2 + 2 + 6 + 0 + 8 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121226089.

It is not an unprimeable number, because it can be changed into a prime (121226081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1955229 + ... + 1955290.

It is an arithmetic number, because the mean of its divisors is an integer number (31284160).

Almost surely, 2^121226089 is an apocalyptic number.

It is an amenable number.

121226089 is a deficient number, since it is larger than the sum of its proper divisors (3910551).

121226089 is an equidigital number, since it uses as much as digits as its factorization.

121226089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910550.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 121226089 is about 11010.2719766589. The cubic root of 121226089 is about 494.9166121479.

The spelling of 121226089 in words is "one hundred twenty-one million, two hundred twenty-six thousand, eighty-nine".