2102111211001 has 8 divisors (see below), whose sum is σ = 2107206429120. Its totient is φ = 2097018531888.

The previous prime is 2102111210977. The next prime is 2102111211029. The reversal of 2102111211001 is 1001121112012.

It is a happy number.

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 2102111211001 - 2¹³ = 2102111202809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102111218001) 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, 1028380 + ... + 2293858.

It is an arithmetic number, because the mean of its divisors is an integer number (263400803640).

Almost surely, 2^{2102111211001} is an apocalyptic number.

It is an amenable number.

2102111211001 is a deficient number, since it is larger than the sum of its proper divisors (5095218119).

2102111211001 is a wasteful number, since it uses less digits than its factorization.

2102111211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269503.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2102111211001 its reverse (1001121112012), we get a palindrome (3103232323013).

The spelling of 2102111211001 in words is "two trillion, one hundred two billion, one hundred eleven million, two hundred eleven thousand, one".