10121112202111 has 4 divisors (see below), whose sum is σ = 10121198876800. Its totient is φ = 10121025527424.

The previous prime is 10121112202079. The next prime is 10121112202133. The reversal of 10121112202111 is 11120221112101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10121112202111 - 2⁵ = 10121112202079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121112202171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43161951 + ... + 43395808.

It is an arithmetic number, because the mean of its divisors is an integer number (2530299719200).

Almost surely, 2^{10121112202111} is an apocalyptic number.

10121112202111 is a deficient number, since it is larger than the sum of its proper divisors (86674689).

10121112202111 is an equidigital number, since it uses as much as digits as its factorization.

10121112202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86674688.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10121112202111 its reverse (11120221112101), we get a palindrome (21241333314212).

The spelling of 10121112202111 in words is "ten trillion, one hundred twenty-one billion, one hundred twelve million, two hundred two thousand, one hundred eleven".