121005010 has 48 divisors (see below), whose sum is σ = 259307136. Its totient is φ = 40515552.

The previous prime is 121004999. The next prime is 121005013. The reversal of 121005010 is 10500121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (121005013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18199 + ... + 23941.

It is an arithmetic number, because the mean of its divisors is an integer number (5402232).

Almost surely, 2^121005010 is an apocalyptic number.

121005010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121005010 is an abundant number, since it is smaller than the sum of its proper divisors (138302126).

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

121005010 is a wasteful number, since it uses less digits than its factorization.

121005010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807 (or 5800 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 121005010 is about 11000.2277249155. The cubic root of 121005010 is about 494.6155706489.

Adding to 121005010 its reverse (10500121), we get a palindrome (131505131).

The spelling of 121005010 in words is "one hundred twenty-one million, five thousand, ten".