20001100211002 has 8 divisors (see below), whose sum is σ = 30016856430036. Its totient is φ = 9995481400992.

The previous prime is 20001100210951. The next prime is 20001100211009. The reversal of 20001100211002 is 20011200110002.

It can be written as a sum of positive squares in 2 ways, for example, as 17106239568961 + 2894860642041 = 4135969^2 + 1701429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20001100211002.

It is not an unprimeable number, because it can be changed into a prime (20001100211009) 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, 2534347323 + ... + 2534355214.

Almost surely, 2^{20001100211002} is an apocalyptic number.

20001100211002 is a deficient number, since it is larger than the sum of its proper divisors (10015756219034).

20001100211002 is a wasteful number, since it uses less digits than its factorization.

20001100211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068704512.

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

Adding to 20001100211002 its reverse (20011200110002), we get a palindrome (40012300321004).

The spelling of 20001100211002 in words is "twenty trillion, one billion, one hundred million, two hundred eleven thousand, two".