121123210010 has 64 divisors (see below), whose sum is σ = 253529395200. Its totient is φ = 41198414400.

The previous prime is 121123209971. The next prime is 121123210057. The reversal of 121123210010 is 10012321121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201686 + ... + 531905.

It is an arithmetic number, because the mean of its divisors is an integer number (3961396800).

Almost surely, 2^121123210010 is an apocalyptic number.

121123210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121123210010 is an abundant number, since it is smaller than the sum of its proper divisors (132406185190).

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

121123210010 is a wasteful number, since it uses less digits than its factorization.

121123210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733707.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121123210010 its reverse (10012321121), we get a palindrome (131135531131).

Subtracting from 121123210010 its reverse (10012321121), we obtain a square (111110888889 = 333333²).

It can be divided in two parts, 121123 and 210010, that added together give a palindrome (331133).

The spelling of 121123210010 in words is "one hundred twenty-one billion, one hundred twenty-three million, two hundred ten thousand, ten".