121516026 has 16 divisors (see below), whose sum is σ = 247016928. Its totient is φ = 39841200.

The previous prime is 121515997. The next prime is 121516027. The reversal of 121516026 is 620615121.

It is a super-2 number, since 2×121516026² = 29532289149665352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121515987 and 121516005.

It is not an unprimeable number, because it can be changed into a prime (121516027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165640 + ... + 166371.

It is an arithmetic number, because the mean of its divisors is an integer number (15438558).

Almost surely, 2^121516026 is an apocalyptic number.

121516026 is an abundant number, since it is smaller than the sum of its proper divisors (125500902).

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

121516026 is a wasteful number, since it uses less digits than its factorization.

121516026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332077.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121516026 is about 11023.4307726769. The cubic root of 121516026 is about 495.3108627908.

The spelling of 121516026 in words is "one hundred twenty-one million, five hundred sixteen thousand, twenty-six".