10121221124 has 24 divisors (see below), whose sum is σ = 20895426048. Its totient is φ = 4197741120.

The previous prime is 10121221111. The next prime is 10121221147. The reversal of 10121221124 is 42112212101.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5829329 + ... + 5831064.

It is an arithmetic number, because the mean of its divisors is an integer number (870642752).

Almost surely, 2^10121221124 is an apocalyptic number.

10121221124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10121221124 is an abundant number, since it is smaller than the sum of its proper divisors (10774204924).

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

10121221124 is a wasteful number, since it uses less digits than its factorization.

10121221124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660435 (or 11660433 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10121221124 its reverse (42112212101), we get a palindrome (52233433225).

The spelling of 10121221124 in words is "ten billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-four".