2102120121001 has 8 divisors (see below), whose sum is σ = 2103614690400. Its totient is φ = 2100625704672.

The previous prime is 2102120120953. The next prime is 2102120121007. The reversal of 2102120121001 is 1001210212012.

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 2102120121001 - 2²³ = 2102111732393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102120121007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49267525 + ... + 49310173.

It is an arithmetic number, because the mean of its divisors is an integer number (262951836300).

Almost surely, 2^{2102120121001} is an apocalyptic number.

It is an amenable number.

2102120121001 is a deficient number, since it is larger than the sum of its proper divisors (1494569399).

2102120121001 is a wasteful number, since it uses less digits than its factorization.

2102120121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76535.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2102120121001 its reverse (1001210212012), we get a palindrome (3103330333013).

It can be divided in two parts, 210212012 and 1001, that multiplied together give a palindrome (210422224012).

The spelling of 2102120121001 in words is "two trillion, one hundred two billion, one hundred twenty million, one hundred twenty-one thousand, one".