20011002101211 has 32 divisors (see below), whose sum is σ = 29163609838080. Its totient is φ = 12104275680000.

The previous prime is 20011002101183. The next prime is 20011002101231. The reversal of 20011002101211 is 11210120011002.

It is not a de Polignac number, because 20011002101211 - 2²⁹ = 20010465230299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011002101231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40677711 + ... + 41166711.

It is an arithmetic number, because the mean of its divisors is an integer number (911362807440).

Almost surely, 2^{20011002101211} is an apocalyptic number.

20011002101211 is a deficient number, since it is larger than the sum of its proper divisors (9152607736869).

20011002101211 is a wasteful number, since it uses less digits than its factorization.

20011002101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491427.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20011002101211 its reverse (11210120011002), we get a palindrome (31221122112213).

The spelling of 20011002101211 in words is "twenty trillion, eleven billion, two million, one hundred one thousand, two hundred eleven".