121112001011 has 8 divisors (see below), whose sum is σ = 122784514800. Its totient is φ = 119439850752.

The previous prime is 121112000939. The next prime is 121112001053. The reversal of 121112001011 is 110100211121.

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 121112001011 - 2²⁶ = 121044892147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121112000983 and 121112001001.

It is not an unprimeable number, because it can be changed into a prime (121112001061) 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, 617915 + ... + 789963.

It is an arithmetic number, because the mean of its divisors is an integer number (15348064350).

Almost surely, 2^121112001011 is an apocalyptic number.

121112001011 is a deficient number, since it is larger than the sum of its proper divisors (1672513789).

121112001011 is an equidigital number, since it uses as much as digits as its factorization.

121112001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181765.

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

Adding to 121112001011 its reverse (110100211121), we get a palindrome (231212212132).

The spelling of 121112001011 in words is "one hundred twenty-one billion, one hundred twelve million, one thousand, eleven".