211201102102011 has 16 divisors (see below), whose sum is σ = 323053939997184. Its totient is φ = 120227460617664.

The previous prime is 211201102101949. The next prime is 211201102102027. The reversal of 211201102102011 is 110201201102112.

It is a happy number.

It is not a de Polignac number, because 211201102102011 - 2¹¹ = 211201102099963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211201102102811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19120137706 + ... + 19120148751.

It is an arithmetic number, because the mean of its divisors is an integer number (20190871249824).

Almost surely, 2^{211201102102011} is an apocalyptic number.

211201102102011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211201102102011 is a deficient number, since it is larger than the sum of its proper divisors (111852837895173).

211201102102011 is a wasteful number, since it uses less digits than its factorization.

211201102102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38240286730.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211201102102011 its reverse (110201201102112), we get a palindrome (321402303204123).

The spelling of 211201102102011 in words is "two hundred eleven trillion, two hundred one billion, one hundred two million, one hundred two thousand, eleven".