211101232011121 has 8 divisors (see below), whose sum is σ = 212198040536040. Its totient is φ = 210004454618112.

The previous prime is 211101232011113. The next prime is 211101232011127. The reversal of 211101232011121 is 121110232101112.

It can be written as a sum of positive squares in 4 ways, for example, as 15880535831521 + 195220696179600 = 3985039^2 + 13972140^2 .

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 211101232011121 - 2³ = 211101232011113 is a prime.

It is a super-2 number, since 2×211101232011121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211101232011127) 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, 5876091 + ... + 21371263.

It is an arithmetic number, because the mean of its divisors is an integer number (26524755067005).

Almost surely, 2^{211101232011121} is an apocalyptic number.

It is an amenable number.

211101232011121 is a deficient number, since it is larger than the sum of its proper divisors (1096808524919).

211101232011121 is a wasteful number, since it uses less digits than its factorization.

211101232011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15565955.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 211101232011121 its reverse (121110232101112), we get a palindrome (332211464112233).

The spelling of 211101232011121 in words is "two hundred eleven trillion, one hundred one billion, two hundred thirty-two million, eleven thousand, one hundred twenty-one".