211121001120121 has 8 divisors (see below), whose sum is σ = 212129077282304. Its totient is φ = 210113472683520.

The previous prime is 211121001120091. The next prime is 211121001120203. The reversal of 211121001120121 is 121021100121112.

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 211121001120121 - 2¹¹ = 211121001118073 is a prime.

It is a super-2 number, since 2×211121001120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211121001120095 and 211121001120104.

It is not an unprimeable number, because it can be changed into a prime (211121001120521) 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, 136158645 + ... + 137700466.

It is an arithmetic number, because the mean of its divisors is an integer number (26516134660288).

Almost surely, 2^{211121001120121} is an apocalyptic number.

It is an amenable number.

211121001120121 is a deficient number, since it is larger than the sum of its proper divisors (1008076162183).

211121001120121 is a wasteful number, since it uses less digits than its factorization.

211121001120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273862791.

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

Adding to 211121001120121 its reverse (121021100121112), we get a palindrome (332142101241233).

Subtracting from 211121001120121 its reverse (121021100121112), we obtain a palindrome (90099900999009).

The spelling of 211121001120121 in words is "two hundred eleven trillion, one hundred twenty-one billion, one million, one hundred twenty thousand, one hundred twenty-one".