12021012200109 has 16 divisors (see below), whose sum is σ = 17486009536320. Its totient is φ = 7285086572160.

The previous prime is 12021012200023. The next prime is 12021012200147. The reversal of 12021012200109 is 90100221012021.

It is not a de Polignac number, because 12021012200109 - 2¹¹ = 12021012198061 is a prime.

It is a super-2 number, since 2×12021012200109² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021012200159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8733312 + ... + 10015625.

It is an arithmetic number, because the mean of its divisors is an integer number (1092875596020).

Almost surely, 2^{12021012200109} is an apocalyptic number.

It is an amenable number.

12021012200109 is a deficient number, since it is larger than the sum of its proper divisors (5464997336211).

12021012200109 is a wasteful number, since it uses less digits than its factorization.

12021012200109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18768380.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12021012200109 in words is "twelve trillion, twenty-one billion, twelve million, two hundred thousand, one hundred nine".