211210021101121 has 16 divisors (see below), whose sum is σ = 258881342371200. Its totient is φ = 168272872530048.

The previous prime is 211210021101073. The next prime is 211210021101137. The reversal of 211210021101121 is 121101120012112.

It is a cyclic number.

It is not a de Polignac number, because 211210021101121 - 2²¹ = 211210019003969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211210021101095 and 211210021101104.

It is not an unprimeable number, because it can be changed into a prime (211210021105121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14981552116 + ... + 14981566213.

It is an arithmetic number, because the mean of its divisors is an integer number (16180083898200).

Almost surely, 2^{211210021101121} is an apocalyptic number.

It is an amenable number.

211210021101121 is a deficient number, since it is larger than the sum of its proper divisors (47671321270079).

211210021101121 is a wasteful number, since it uses less digits than its factorization.

211210021101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29963118408.

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

Adding to 211210021101121 its reverse (121101120012112), we get a palindrome (332311141113233).

The spelling of 211210021101121 in words is "two hundred eleven trillion, two hundred ten billion, twenty-one million, one hundred one thousand, one hundred twenty-one".