211122112102121 has 16 divisors (see below), whose sum is σ = 245126513176128. Its totient is φ = 179703285657600.

The previous prime is 211122112102091. The next prime is 211122112102123. The reversal of 211122112102121 is 121201211221112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211122112102121 - 2²² = 211122107907817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211122112102093 and 211122112102102.

It is not an unprimeable number, because it can be changed into a prime (211122112102123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2924822075 + ... + 2924894256.

It is an arithmetic number, because the mean of its divisors is an integer number (15320407073508).

Almost surely, 2^{211122112102121} is an apocalyptic number.

It is an amenable number.

211122112102121 is a deficient number, since it is larger than the sum of its proper divisors (34004401074007).

211122112102121 is a wasteful number, since it uses less digits than its factorization.

211122112102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849716552.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211122112102121 its reverse (121201211221112), we get a palindrome (332323323323233).

The spelling of 211122112102121 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred twelve million, one hundred two thousand, one hundred twenty-one".