12201011211021 has 8 divisors (see below), whose sum is σ = 16490864468160. Its totient is φ = 8022582713952.

The previous prime is 12201011210951. The next prime is 12201011211071. The reversal of 12201011211021 is 12011211010221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12201011211021 - 2¹⁰ = 12201011209997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201011211071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27856189761 + ... + 27856190198.

It is an arithmetic number, because the mean of its divisors is an integer number (2061358058520).

Almost surely, 2^{12201011211021} is an apocalyptic number.

It is an amenable number.

12201011211021 is a deficient number, since it is larger than the sum of its proper divisors (4289853257139).

12201011211021 is an equidigital number, since it uses as much as digits as its factorization.

12201011211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55712380035.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12201011211021 its reverse (12011211010221), we get a palindrome (24212222221242).

The spelling of 12201011211021 in words is "twelve trillion, two hundred one billion, eleven million, two hundred eleven thousand, twenty-one".