121226087 has 2 divisors, whose sum is σ = 121226088. Its totient is φ = 121226086.

The previous prime is 121226081. The next prime is 121226101. The reversal of 121226087 is 780622121.

It is a weak prime.

It is an emirp because it is prime and its reverse (780622121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121226087 - 2¹⁰ = 121225063 is a prime.

It is a Chen prime.

It is equal to p_6907511 and since 121226087 and 6907511 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121226081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60613043 + 60613044.

It is an arithmetic number, because the mean of its divisors is an integer number (60613044).

Almost surely, 2^121226087 is an apocalyptic number.

121226087 is a deficient number, since it is larger than the sum of its proper divisors (1).

121226087 is an equidigital number, since it uses as much as digits as its factorization.

121226087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 121226087 is about 11010.2718858346. The cubic root of 121226087 is about 494.9166094261.

The spelling of 121226087 in words is "one hundred twenty-one million, two hundred twenty-six thousand, eighty-seven".