20202022121201 has 4 divisors (see below), whose sum is σ = 20202476991972. Its totient is φ = 20201567250432.

The previous prime is 20202022121189. The next prime is 20202022121213. The reversal of 20202022121201 is 10212122020202.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (20202022121189) and next prime (20202022121213).

It can be written as a sum of positive squares in 2 ways, for example, as 3235408028176 + 16966614093025 = 1798724^2 + 4119055^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202022121201 - 2¹⁰ = 20202022120177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20202022121201.

It is not an unprimeable number, because it can be changed into a prime (20202072121201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227368760 + ... + 227457593.

It is an arithmetic number, because the mean of its divisors is an integer number (5050619247993).

Almost surely, 2^{20202022121201} is an apocalyptic number.

It is an amenable number.

20202022121201 is a deficient number, since it is larger than the sum of its proper divisors (454870771).

20202022121201 is an equidigital number, since it uses as much as digits as its factorization.

20202022121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454870770.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20202022121201 its reverse (10212122020202), we get a palindrome (30414144141403).

The spelling of 20202022121201 in words is "twenty trillion, two hundred two billion, twenty-two million, one hundred twenty-one thousand, two hundred one".