121210026 has 32 divisors (see below), whose sum is σ = 282710400. Its totient is φ = 34630848.

The previous prime is 121210021. The next prime is 121210027. The reversal of 121210026 is 620012121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121209987 and 121210014.

It is not an unprimeable number, because it can be changed into a prime (121210021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27391 + ... + 31506.

It is an arithmetic number, because the mean of its divisors is an integer number (8834700).

Almost surely, 2^121210026 is an apocalyptic number.

121210026 is an abundant number, since it is smaller than the sum of its proper divisors (161500374).

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

121210026 is an equidigital number, since it uses as much as digits as its factorization.

121210026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58923 (or 58909 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 121210026 is about 11009.5424973066. The cubic root of 121210026 is about 494.8947516260.

Adding to 121210026 its reverse (620012121), we get a palindrome (741222147).

The spelling of 121210026 in words is "one hundred twenty-one million, two hundred ten thousand, twenty-six".