211121100022011 has 8 divisors (see below), whose sum is σ = 281529454105920. Its totient is φ = 140730072976392.

The previous prime is 211121100021977. The next prime is 211121100022109. The reversal of 211121100022011 is 110220001121112.

It is a happy number.

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

It is not a de Polignac number, because 211121100022011 - 2¹⁵ = 211121099989243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211121100022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4331731141 + ... + 4331779878.

It is an arithmetic number, because the mean of its divisors is an integer number (35191181763240).

Almost surely, 2^{211121100022011} is an apocalyptic number.

211121100022011 is a deficient number, since it is larger than the sum of its proper divisors (70408354083909).

211121100022011 is an equidigital number, since it uses as much as digits as its factorization.

211121100022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663519145.

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

Adding to 211121100022011 its reverse (110220001121112), we get a palindrome (321341101143123).

The spelling of 211121100022011 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred million, twenty-two thousand, eleven".