121100211101 has 4 divisors (see below), whose sum is σ = 121107375552. Its totient is φ = 121093046652.

The previous prime is 121100211083. The next prime is 121100211107. The reversal of 121100211101 is 101112001121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121100211101 - 2¹⁴ = 121100194717 is a prime.

It is a super-2 number, since 2×121100211101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100211107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3556811 + ... + 3590696.

It is an arithmetic number, because the mean of its divisors is an integer number (30276843888).

Almost surely, 2^121100211101 is an apocalyptic number.

It is an amenable number.

121100211101 is a deficient number, since it is larger than the sum of its proper divisors (7164451).

121100211101 is an equidigital number, since it uses as much as digits as its factorization.

121100211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164450.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121100211101 its reverse (101112001121), we get a palindrome (222212212222).

The spelling of 121100211101 in words is "one hundred twenty-one billion, one hundred million, two hundred eleven thousand, one hundred one".