10121121211012 has 96 divisors (see below), whose sum is σ = 22240299755520. Its totient is φ = 3931364989440.

The previous prime is 10121121210997. The next prime is 10121121211021. The reversal of 10121121211012 is 21011212112101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2029062 + ... + 4935517.

It is an arithmetic number, because the mean of its divisors is an integer number (231669789120).

Almost surely, 2^{10121121211012} is an apocalyptic number.

It is an amenable number.

10121121211012 is an abundant number, since it is smaller than the sum of its proper divisors (12119178544508).

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

10121121211012 is a wasteful number, since it uses less digits than its factorization.

10121121211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6964721 (or 6964719 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10121121211012 its reverse (21011212112101), we get a palindrome (31132333323113).

The spelling of 10121121211012 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, twelve".