202020221122001 has 4 divisors (see below), whose sum is σ = 202022756373312. Its totient is φ = 202017685870692.

The previous prime is 202020221121919. The next prime is 202020221122091. The reversal of 202020221122001 is 100221122020202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202020221122001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202020221122091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267506125 + ... + 1267665498.

It is an arithmetic number, because the mean of its divisors is an integer number (50505689093328).

Almost surely, 2^{202020221122001} is an apocalyptic number.

It is an amenable number.

202020221122001 is a deficient number, since it is larger than the sum of its proper divisors (2535251311).

202020221122001 is an equidigital number, since it uses as much as digits as its factorization.

202020221122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535251310.

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

Adding to 202020221122001 its reverse (100221122020202), we get a palindrome (302241343142203).

The spelling of 202020221122001 in words is "two hundred two trillion, twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, one".