202001120222221 has 4 divisors (see below), whose sum is σ = 202003566816352. Its totient is φ = 201998673628092.

The previous prime is 202001120222219. The next prime is 202001120222233. The reversal of 202001120222221 is 122222021100202.

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 not a de Polignac number, because 202001120222221 - 2¹ = 202001120222219 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 (202001120225221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223173215 + ... + 1223338348.

It is an arithmetic number, because the mean of its divisors is an integer number (50500891704088).

Almost surely, 2^{202001120222221} is an apocalyptic number.

It is an amenable number.

202001120222221 is a deficient number, since it is larger than the sum of its proper divisors (2446594131).

202001120222221 is an equidigital number, since it uses as much as digits as its factorization.

202001120222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446594130.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202001120222221 its reverse (122222021100202), we get a palindrome (324223141322423).

The spelling of 202001120222221 in words is "two hundred two trillion, one billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-one".