121121332010 has 64 divisors (see below), whose sum is σ = 260747569152. Its totient is φ = 39607123776.

The previous prime is 121121331983. The next prime is 121121332049. The reversal of 121121332010 is 10233121121.

It is a self number, because there is not a number n which added to its sum of digits gives 121121332010.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 450269 + ... + 667071.

It is an arithmetic number, because the mean of its divisors is an integer number (4074180768).

Almost surely, 2^121121332010 is an apocalyptic number.

121121332010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121332010 is an abundant number, since it is smaller than the sum of its proper divisors (139626237142).

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

121121332010 is a wasteful number, since it uses less digits than its factorization.

121121332010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217187.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121121332010 its reverse (10233121121), we get a palindrome (131354453131).

The spelling of 121121332010 in words is "one hundred twenty-one billion, one hundred twenty-one million, three hundred thirty-two thousand, ten".