12100021122101 has 4 divisors (see below), whose sum is σ = 13200023042304. Its totient is φ = 11000019201900.

The previous prime is 12100021121891. The next prime is 12100021122131. The reversal of 12100021122101 is 10122112000121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12100021122101 - 2³⁴ = 12082841252917 is a prime.

It is a super-2 number, since 2×12100021122101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100021122131) 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, 550000960085 + ... + 550000960106.

It is an arithmetic number, because the mean of its divisors is an integer number (3300005760576).

Almost surely, 2^{12100021122101} is an apocalyptic number.

12100021122101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12100021122101 is a deficient number, since it is larger than the sum of its proper divisors (1100001920203).

12100021122101 is a wasteful number, since it uses less digits than its factorization.

12100021122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100001920202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12100021122101 its reverse (10122112000121), we get a palindrome (22222133122222).

The spelling of 12100021122101 in words is "twelve trillion, one hundred billion, twenty-one million, one hundred twenty-two thousand, one hundred one".