2100120411101 has 4 divisors (see below), whose sum is σ = 2139745324572. Its totient is φ = 2060495497632.

The previous prime is 2100120411089. The next prime is 2100120411113. The reversal of 2100120411101 is 1011140210012.

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

It is an interprime number because it is at equal distance from previous prime (2100120411089) and next prime (2100120411113).

It can be written as a sum of positive squares in 2 ways, for example, as 1869033499876 + 231086911225 = 1367126^2 + 480715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100120411101 - 2³⁸ = 1825242504157 is a prime.

It is a super-2 number, since 2×2100120411101² (a number of 25 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 (2100120411401) 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, 19812456656 + ... + 19812456761.

It is an arithmetic number, because the mean of its divisors is an integer number (534936331143).

Almost surely, 2^{2100120411101} is an apocalyptic number.

It is an amenable number.

2100120411101 is a deficient number, since it is larger than the sum of its proper divisors (39624913471).

2100120411101 is an equidigital number, since it uses as much as digits as its factorization.

2100120411101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39624913470.

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

Adding to 2100120411101 its reverse (1011140210012), we get a palindrome (3111260621113).

The spelling of 2100120411101 in words is "two trillion, one hundred billion, one hundred twenty million, four hundred eleven thousand, one hundred one".