211001122220001 has 16 divisors (see below), whose sum is σ = 293008029648768. Its totient is φ = 134937908380800.

The previous prime is 211001122219999. The next prime is 211001122220087. The reversal of 211001122220001 is 100022221100112.

It is not a de Polignac number, because 211001122220001 - 2¹ = 211001122219999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211001122222001) 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, 13386689380 + ... + 13386705141.

It is an arithmetic number, because the mean of its divisors is an integer number (18313001853048).

Almost surely, 2^{211001122220001} is an apocalyptic number.

It is an amenable number.

211001122220001 is a deficient number, since it is larger than the sum of its proper divisors (82006907428767).

211001122220001 is a wasteful number, since it uses less digits than its factorization.

211001122220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26773394632.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211001122220001 its reverse (100022221100112), we get a palindrome (311023343320113).

The spelling of 211001122220001 in words is "two hundred eleven trillion, one billion, one hundred twenty-two million, two hundred twenty thousand, one".