202012231222001 has 4 divisors (see below), whose sum is σ = 204282031572900. Its totient is φ = 199742430871104.

The previous prime is 202012231221979. The next prime is 202012231222003. The reversal of 202012231222001 is 100222132210202.

202012231222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 90586156440976 + 111426074781025 = 9517676^2 + 10555855^2 .

It is a cyclic number.

It is not a de Polignac number, because 202012231222001 - 2⁴⁶ = 131643487044337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012231222003) 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, 1134900175316 + ... + 1134900175493.

It is an arithmetic number, because the mean of its divisors is an integer number (51070507893225).

Almost surely, 2^{202012231222001} is an apocalyptic number.

It is an amenable number.

202012231222001 is a deficient number, since it is larger than the sum of its proper divisors (2269800350899).

202012231222001 is an equidigital number, since it uses as much as digits as its factorization.

202012231222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269800350898.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 202012231222001 its reverse (100222132210202), we get a palindrome (302234363432203).

The spelling of 202012231222001 in words is "two hundred two trillion, twelve billion, two hundred thirty-one million, two hundred twenty-two thousand, one".