12010202011221 has 16 divisors (see below), whose sum is σ = 16276272448320. Its totient is φ = 7875468904320.

The previous prime is 12010202011219. The next prime is 12010202011229. The reversal of 12010202011221 is 12211020201021.

It is not a de Polignac number, because 12010202011221 - 2¹ = 12010202011219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010202011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010202011229) 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, 25162690 + ... + 25635548.

It is an arithmetic number, because the mean of its divisors is an integer number (1017267028020).

Almost surely, 2^{12010202011221} is an apocalyptic number.

It is an amenable number.

12010202011221 is a deficient number, since it is larger than the sum of its proper divisors (4266070437099).

12010202011221 is a wasteful number, since it uses less digits than its factorization.

12010202011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611716.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12010202011221 its reverse (12211020201021), we get a palindrome (24221222212242).

The spelling of 12010202011221 in words is "twelve trillion, ten billion, two hundred two million, eleven thousand, two hundred twenty-one".