211100001121 has 8 divisors (see below), whose sum is σ = 214466704704. Its totient is φ = 207758329200.

The previous prime is 211100001109. The next prime is 211100001131. The reversal of 211100001121 is 121100001112.

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

It is a cyclic number.

It is not a de Polignac number, because 211100001121 - 2¹⁵ = 211099968353 is a prime.

It is a super-5 number, since 5×211100001121⁵ (a number of 58 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211100001098 and 211100001107.

It is not an unprimeable number, because it can be changed into a prime (211100001131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6240915 + ... + 6274648.

It is an arithmetic number, because the mean of its divisors is an integer number (26808338088).

Almost surely, 2^211100001121 is an apocalyptic number.

It is an amenable number.

211100001121 is a deficient number, since it is larger than the sum of its proper divisors (3366703583).

211100001121 is a wasteful number, since it uses less digits than its factorization.

211100001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515831.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 211100001121 its reverse (121100001112), we get a palindrome (332200002233).

Subtracting from 211100001121 its reverse (121100001112), we obtain a palindrome (90000000009).

The spelling of 211100001121 in words is "two hundred eleven billion, one hundred million, one thousand, one hundred twenty-one".