12202122101021 has 4 divisors (see below), whose sum is σ = 12204514210044. Its totient is φ = 12199729992000.

The previous prime is 12202122100963. The next prime is 12202122101051. The reversal of 12202122101021 is 12010122120221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2497619908996 + 9704502192025 = 1580386^2 + 3115205^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202122101021 - 2⁶ = 12202122100957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202122101051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196046860 + ... + 1196057061.

It is an arithmetic number, because the mean of its divisors is an integer number (3051128552511).

Almost surely, 2^{12202122101021} is an apocalyptic number.

It is an amenable number.

12202122101021 is a deficient number, since it is larger than the sum of its proper divisors (2392109023).

12202122101021 is an equidigital number, since it uses as much as digits as its factorization.

12202122101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392109022.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12202122101021 its reverse (12010122120221), we get a palindrome (24212244221242).

It can be divided in two parts, 1220212 and 2101021, that added together give a palindrome (3321233).

The spelling of 12202122101021 in words is "twelve trillion, two hundred two billion, one hundred twenty-two million, one hundred one thousand, twenty-one".