12101220001101 has 32 divisors (see below), whose sum is σ = 21299626349568. Its totient is φ = 5916562871040.

The previous prime is 12101220001051. The next prime is 12101220001109. The reversal of 12101220001101 is 10110002210121.

It is not a de Polignac number, because 12101220001101 - 2¹¹ = 12101219999053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101220001109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1540767655 + ... + 1540775508.

It is an arithmetic number, because the mean of its divisors is an integer number (665613323424).

Almost surely, 2^{12101220001101} is an apocalyptic number.

12101220001101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12101220001101 is a deficient number, since it is larger than the sum of its proper divisors (9198406348467).

12101220001101 is a wasteful number, since it uses less digits than its factorization.

12101220001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081543201.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101220001101 its reverse (10110002210121), we get a palindrome (22211222211222).

The spelling of 12101220001101 in words is "twelve trillion, one hundred one billion, two hundred twenty million, one thousand, one hundred one".