121122887 has 4 divisors (see below), whose sum is σ = 121656696. Its totient is φ = 120589080.

The previous prime is 121122877. The next prime is 121122907. The reversal of 121122887 is 788221121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788221121 = 8933 ⋅88237.

It is a cyclic number.

It is not a de Polignac number, because 121122887 - 2¹² = 121118791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122817) 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, 266564 + ... + 267017.

It is an arithmetic number, because the mean of its divisors is an integer number (30414174).

Almost surely, 2^121122887 is an apocalyptic number.

121122887 is a deficient number, since it is larger than the sum of its proper divisors (533809).

121122887 is an equidigital number, since it uses as much as digits as its factorization.

121122887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533808.

The product of its digits is 3584, while the sum is 32.

The square root of 121122887 is about 11005.5843552262. The cubic root of 121122887 is about 494.7761284022.

The spelling of 121122887 in words is "one hundred twenty-one million, one hundred twenty-two thousand, eight hundred eighty-seven".