10121111200121 has 8 divisors (see below), whose sum is σ = 10145920243200. Its totient is φ = 10096305270480.

The previous prime is 10121111200117. The next prime is 10121111200133. The reversal of 10121111200121 is 12100211112101.

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 10121111200121 - 2² = 10121111200117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10121111200096 and 10121111200105.

It is not an unprimeable number, because it can be changed into a prime (10121111200621) 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, 5799191 + ... + 7339811.

It is an arithmetic number, because the mean of its divisors is an integer number (1268240030400).

Almost surely, 2^{10121111200121} is an apocalyptic number.

It is an amenable number.

10121111200121 is a deficient number, since it is larger than the sum of its proper divisors (24809043079).

10121111200121 is a wasteful number, since it uses less digits than its factorization.

10121111200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556719.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10121111200121 its reverse (12100211112101), we get a palindrome (22221322312222).

The spelling of 10121111200121 in words is "ten trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thousand, one hundred twenty-one".