121100311211 has 8 divisors (see below), whose sum is σ = 132114816048. Its totient is φ = 110086704000.

The previous prime is 121100311159. The next prime is 121100311217. The reversal of 121100311211 is 112113001121.

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 121100311211 - 2⁶ = 121100311147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100311217) 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, 75071 + ... + 497831.

It is an arithmetic number, because the mean of its divisors is an integer number (16514352006).

Almost surely, 2^121100311211 is an apocalyptic number.

121100311211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121100311211 is a deficient number, since it is larger than the sum of its proper divisors (11014504837).

121100311211 is a wasteful number, since it uses less digits than its factorization.

121100311211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448813.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 121100311211 its reverse (112113001121), we get a palindrome (233213312332).

The spelling of 121100311211 in words is "one hundred twenty-one billion, one hundred million, three hundred eleven thousand, two hundred eleven".