211101122102121 has 12 divisors (see below), whose sum is σ = 304924713895360. Its totient is φ = 140733679466520.

The previous prime is 211101122102119. The next prime is 211101122102177. The reversal of 211101122102121 is 121201221101112.

It is a happy number.

211101122102121 is a `hidden beast` number, since 21 + 110 + 112 + 210 + 212 + 1 = 666.

It is not a de Polignac number, because 211101122102121 - 2¹ = 211101122102119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211101122102094 and 211101122102103.

It is not an unprimeable number, because it can be changed into a prime (211101122102111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30150661 + ... + 36486498.

Almost surely, 2^{211101122102121} is an apocalyptic number.

It is an amenable number.

211101122102121 is a deficient number, since it is larger than the sum of its proper divisors (93823591793239).

211101122102121 is a wasteful number, since it uses less digits than its factorization.

211101122102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66989156 (or 66989153 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211101122102121 its reverse (121201221101112), we get a palindrome (332302343203233).

The spelling of 211101122102121 in words is "two hundred eleven trillion, one hundred one billion, one hundred twenty-two million, one hundred two thousand, one hundred twenty-one".