10121212201111 has 8 divisors (see below), whose sum is σ = 11041587992448. Its totient is φ = 9200880675000.

The previous prime is 10121212201109. The next prime is 10121212201151. The reversal of 10121212201111 is 11110221212101.

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 10121212201111 - 2¹ = 10121212201109 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 (10121212201151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10587315 + ... + 11503636.

It is an arithmetic number, because the mean of its divisors is an integer number (1380198499056).

Almost surely, 2^{10121212201111} is an apocalyptic number.

10121212201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121212201111 is a deficient number, since it is larger than the sum of its proper divisors (920375791337).

10121212201111 is a wasteful number, since it uses less digits than its factorization.

10121212201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22132613.

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

Adding to 10121212201111 its reverse (11110221212101), we get a palindrome (21231433413212).

The spelling of 10121212201111 in words is "ten trillion, one hundred twenty-one billion, two hundred twelve million, two hundred one thousand, one hundred eleven".