12204211240221 has 128 divisors (see below), whose sum is σ = 22471580307456. Its totient is φ = 5685630382080.

The previous prime is 12204211240219. The next prime is 12204211240271.

12204211240221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12204211240221 - 2¹ = 12204211240219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12204211240191 and 12204211240200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204211240271) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 75808405 + ... + 75969221.

It is an arithmetic number, because the mean of its divisors is an integer number (175559221152).

Almost surely, 2^{12204211240221} is an apocalyptic number.

12204211240221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12204211240221 is a deficient number, since it is larger than the sum of its proper divisors (10267369067235).

12204211240221 is a wasteful number, since it uses less digits than its factorization.

12204211240221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161571.

The product of its (nonzero) digits is 1024, while the sum is 24.

It can be divided in two parts, 1220421 and 1240221, that added together give a palindrome (2460642).

The spelling of 12204211240221 in words is "twelve trillion, two hundred four billion, two hundred eleven million, two hundred forty thousand, two hundred twenty-one".