202012011001 has 4 divisors (see below), whose sum is σ = 202515782004. Its totient is φ = 201508240000.

The previous prime is 202012010969. The next prime is 202012011023. The reversal of 202012011001 is 100110210202.

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 143225159401 + 58786851600 = 378451^2 + 242460^2 .

It is a cyclic number.

It is not a de Polignac number, because 202012011001 - 2⁵ = 202012010969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012011301) 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, 251884900 + ... + 251885701.

It is an arithmetic number, because the mean of its divisors is an integer number (50628945501).

Almost surely, 2^202012011001 is an apocalyptic number.

It is an amenable number.

202012011001 is a deficient number, since it is larger than the sum of its proper divisors (503771003).

202012011001 is an equidigital number, since it uses as much as digits as its factorization.

202012011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503771002.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 202012011001 its reverse (100110210202), we get a palindrome (302122221203).

The spelling of 202012011001 in words is "two hundred two billion, twelve million, eleven thousand, one".