211001121101 has 16 divisors (see below), whose sum is σ = 233326147968. Its totient is φ = 189792345600.

The previous prime is 211001121091. The next prime is 211001121109. The reversal of 211001121101 is 101121100112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211001121101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001121109) 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, 227441 + ... + 688281.

It is an arithmetic number, because the mean of its divisors is an integer number (14582884248).

Almost surely, 2^211001121101 is an apocalyptic number.

It is an amenable number.

211001121101 is a deficient number, since it is larger than the sum of its proper divisors (22325026867).

211001121101 is a wasteful number, since it uses less digits than its factorization.

211001121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462052.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211001121101 its reverse (101121100112), we get a palindrome (312122221213).

The spelling of 211001121101 in words is "two hundred eleven billion, one million, one hundred twenty-one thousand, one hundred one".