10121121201111 has 8 divisors (see below), whose sum is σ = 13930145309184. Its totient is φ = 6529755613560.

The previous prime is 10121121201007. The next prime is 10121121201131. The reversal of 10121121201111 is 11110212112101.

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

It is not a de Polignac number, because 10121121201111 - 2¹⁸ = 10121120938967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121121201131) 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, 54414630021 + ... + 54414630206.

It is an arithmetic number, because the mean of its divisors is an integer number (1741268163648).

Almost surely, 2^{10121121201111} is an apocalyptic number.

10121121201111 is a deficient number, since it is larger than the sum of its proper divisors (3809024108073).

10121121201111 is a wasteful number, since it uses less digits than its factorization.

10121121201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108829260261.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10121121201111 its reverse (11110212112101), we get a palindrome (21231333313212).

The spelling of 10121121201111 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred one thousand, one hundred eleven".