121011112011 has 8 divisors (see below), whose sum is σ = 161403474064. Its totient is φ = 80646412320.

The previous prime is 121011111997. The next prime is 121011112063. The reversal of 121011112011 is 110211110121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121011112011 - 2⁹ = 121011111499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121011112811) 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, 6905380 + ... + 6922881.

It is an arithmetic number, because the mean of its divisors is an integer number (20175434258).

Almost surely, 2^121011112011 is an apocalyptic number.

121011112011 is a deficient number, since it is larger than the sum of its proper divisors (40392362053).

121011112011 is a wasteful number, since it uses less digits than its factorization.

121011112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831181.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 121011112011 its reverse (110211110121), we get a palindrome (231222222132).

The spelling of 121011112011 in words is "one hundred twenty-one billion, eleven million, one hundred twelve thousand, eleven".