202012132122001 has 4 divisors (see below), whose sum is σ = 202545145663600. Its totient is φ = 201479118580404.

The previous prime is 202012132121993. The next prime is 202012132122077. The reversal of 202012132122001 is 100221231210202.

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 202012132122001 - 2³ = 202012132121993 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 202012132122001.

It is not an unprimeable number, because it can be changed into a prime (202012132122091) 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, 266506770231 + ... + 266506770988.

It is an arithmetic number, because the mean of its divisors is an integer number (50636286415900).

Almost surely, 2^{202012132122001} is an apocalyptic number.

It is an amenable number.

202012132122001 is a deficient number, since it is larger than the sum of its proper divisors (533013541599).

202012132122001 is an equidigital number, since it uses as much as digits as its factorization.

202012132122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533013541598.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 202012132122001 its reverse (100221231210202), we get a palindrome (302233363332203).

The spelling of 202012132122001 in words is "two hundred two trillion, twelve billion, one hundred thirty-two million, one hundred twenty-two thousand, one".