10021121021012 has 12 divisors (see below), whose sum is σ = 18010933727220. Its totient is φ = 4875139956096.

The previous prime is 10021121020997. The next prime is 10021121021017. The reversal of 10021121021012 is 21012012112001.

10021121021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8972864484676 + 1048256536336 = 2995474^2 + 1023844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021121021017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33855138437 + ... + 33855138732.

It is an arithmetic number, because the mean of its divisors is an integer number (1500911143935).

Almost surely, 2^{10021121021012} is an apocalyptic number.

It is an amenable number.

10021121021012 is a deficient number, since it is larger than the sum of its proper divisors (7989812706208).

10021121021012 is a wasteful number, since it uses less digits than its factorization.

10021121021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67710277210 (or 67710277208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10021121021012 its reverse (21012012112001), we get a palindrome (31033133133013).

The spelling of 10021121021012 in words is "ten trillion, twenty-one billion, one hundred twenty-one million, twenty-one thousand, twelve".