12111010101121 has 8 divisors (see below), whose sum is σ = 12185783403104. Its totient is φ = 12036242563200.

The previous prime is 12111010101103. The next prime is 12111010101221. The reversal of 12111010101121 is 12110101011121.

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 12111010101121 - 2⁵ = 12111010101089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111010101221) 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, 2812846 + ... + 5668696.

It is an arithmetic number, because the mean of its divisors is an integer number (1523222925388).

Almost surely, 2^{12111010101121} is an apocalyptic number.

It is an amenable number.

12111010101121 is a deficient number, since it is larger than the sum of its proper divisors (74773301983).

12111010101121 is a wasteful number, since it uses less digits than its factorization.

12111010101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882031.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 12111010101121 its reverse (12110101011121), we get a palindrome (24221111112242).

The spelling of 12111010101121 in words is "twelve trillion, one hundred eleven billion, ten million, one hundred one thousand, one hundred twenty-one".