12202021012021 has 8 divisors (see below), whose sum is σ = 12258990944024. Its totient is φ = 12145103470080.

The previous prime is 12202021011979. The next prime is 12202021012033. The reversal of 12202021012021 is 12021012020221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7575628692996 + 4626392319025 = 2752386^2 + 2150905^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12202021012021 - 2⁴³ = 3405927989813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202021011986 and 12202021012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202081012021) 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, 12630576 + ... + 13562281.

It is an arithmetic number, because the mean of its divisors is an integer number (1532373868003).

Almost surely, 2^{12202021012021} is an apocalyptic number.

It is an amenable number.

12202021012021 is a deficient number, since it is larger than the sum of its proper divisors (56969932003).

12202021012021 is a wasteful number, since it uses less digits than its factorization.

12202021012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26195031.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12202021012021 its reverse (12021012020221), we get a palindrome (24223033032242).

The spelling of 12202021012021 in words is "twelve trillion, two hundred two billion, twenty-one million, twelve thousand, twenty-one".