900121021001012 has 24 divisors (see below), whose sum is σ = 1601036839162152. Its totient is φ = 442681941686400.

The previous prime is 900121021000933. The next prime is 900121021001029. The reversal of 900121021001012 is 210100120121009.

900121021001012 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 4 ways, for example, as 35047394567056 + 865073626433956 = 5920084^2 + 29412134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273759038 + ... + 277027530.

It is an arithmetic number, because the mean of its divisors is an integer number (66709868298423).

Almost surely, 2^{900121021001012} is an apocalyptic number.

It is an amenable number.

900121021001012 is a deficient number, since it is larger than the sum of its proper divisors (700915818161140).

900121021001012 is a wasteful number, since it uses less digits than its factorization.

900121021001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397219 (or 4397217 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 900121021001012 in words is "nine hundred trillion, one hundred twenty-one billion, twenty-one million, one thousand, twelve".