211101102121 has 32 divisors (see below), whose sum is σ = 268843760640. Its totient is φ = 161224874496.

The previous prime is 211101102119. The next prime is 211101102133. The reversal of 211101102121 is 121201101112.

It is a happy number.

It is not a de Polignac number, because 211101102121 - 2¹ = 211101102119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (211101102161) 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, 14288080 + ... + 14302846.

It is an arithmetic number, because the mean of its divisors is an integer number (8401367520).

Almost surely, 2^211101102121 is an apocalyptic number.

It is an amenable number.

211101102121 is a deficient number, since it is larger than the sum of its proper divisors (57742658519).

211101102121 is a wasteful number, since it uses less digits than its factorization.

211101102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20233.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211101102121 its reverse (121201101112), we get a palindrome (332302203233).

The spelling of 211101102121 in words is "two hundred eleven billion, one hundred one million, one hundred two thousand, one hundred twenty-one".