2100211121001 has 12 divisors (see below), whose sum is σ = 3257470310352. Its totient is φ = 1200120640488.

The previous prime is 2100211120993. The next prime is 2100211121003. The reversal of 2100211121001 is 1001211120012.

It is not a de Polignac number, because 2100211121001 - 2³ = 2100211120993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100211121003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7143575095 + ... + 7143575388.

It is an arithmetic number, because the mean of its divisors is an integer number (271455859196).

Almost surely, 2^{2100211121001} is an apocalyptic number.

2100211121001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2100211121001 is a deficient number, since it is larger than the sum of its proper divisors (1157259189351).

2100211121001 is a wasteful number, since it uses less digits than its factorization.

2100211121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14287150500 (or 14287150493 counting only the distinct ones).

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

Adding to 2100211121001 its reverse (1001211120012), we get a palindrome (3101422241013).

The spelling of 2100211121001 in words is "two trillion, one hundred billion, two hundred eleven million, one hundred twenty-one thousand, one".