2101212002111 has 8 divisors (see below), whose sum is σ = 2136370028544. Its totient is φ = 2066208517240.

The previous prime is 2101212002107. The next prime is 2101212002209. The reversal of 2101212002111 is 1112002121012.

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 2101212002111 - 2² = 2101212002107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101212002411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38607971 + ... + 38662356.

It is an arithmetic number, because the mean of its divisors is an integer number (267046253568).

Almost surely, 2^{2101212002111} is an apocalyptic number.

2101212002111 is a deficient number, since it is larger than the sum of its proper divisors (35158026433).

2101212002111 is an equidigital number, since it uses as much as digits as its factorization.

2101212002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77270781.

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

Adding to 2101212002111 its reverse (1112002121012), we get a palindrome (3213214123123).

The spelling of 2101212002111 in words is "two trillion, one hundred one billion, two hundred twelve million, two thousand, one hundred eleven".