121700844 has 36 divisors (see below), whose sum is σ = 315950544. Its totient is φ = 39470112.

The previous prime is 121700827. The next prime is 121700851. The reversal of 121700844 is 448007121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×121700844² = 29622190860624672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44352 + ... + 47015.

It is an arithmetic number, because the mean of its divisors is an integer number (8776404).

Almost surely, 2^121700844 is an apocalyptic number.

It is an amenable number.

121700844 is an abundant number, since it is smaller than the sum of its proper divisors (194249700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121700844 is a wasteful number, since it uses less digits than its factorization.

121700844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91414 (or 91409 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 121700844 is about 11031.8105494973. The cubic root of 121700844 is about 495.5618474969.

Adding to 121700844 its reverse (448007121), we get a palindrome (569707965).

The spelling of 121700844 in words is "one hundred twenty-one million, seven hundred thousand, eight hundred forty-four".