2101002111211 has 6 divisors (see below), whose sum is σ = 2231860374500. Its totient is φ = 1977413751456.

The previous prime is 2101002111199. The next prime is 2101002111281. The reversal of 2101002111211 is 1121112001012.

It is a happy number.

It is not a de Polignac number, because 2101002111211 - 2⁷ = 2101002111083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101002111191 and 2101002111200.

It is not an unprimeable number, because it can be changed into a prime (2101002111281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3634951461 + ... + 3634952038.

Almost surely, 2^{2101002111211} is an apocalyptic number.

2101002111211 is a deficient number, since it is larger than the sum of its proper divisors (130858263289).

2101002111211 is an equidigital number, since it uses as much as digits as its factorization.

2101002111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7269903533 (or 7269903516 counting only the distinct ones).

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

Adding to 2101002111211 its reverse (1121112001012), we get a palindrome (3222114112223).

The spelling of 2101002111211 in words is "two trillion, one hundred one billion, two million, one hundred eleven thousand, two hundred eleven".