2111020102211 has 4 divisors (see below), whose sum is σ = 2222126423400. Its totient is φ = 1999913781024.

The previous prime is 2111020102193. The next prime is 2111020102229. The reversal of 2111020102211 is 1122010201112.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2111020102193) and next prime (2111020102229).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111020102211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111020102271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55553160566 + ... + 55553160603.

It is an arithmetic number, because the mean of its divisors is an integer number (555531605850).

Almost surely, 2^{2111020102211} is an apocalyptic number.

2111020102211 is a deficient number, since it is larger than the sum of its proper divisors (111106321189).

2111020102211 is a wasteful number, since it uses less digits than its factorization.

2111020102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111106321188.

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

Adding to 2111020102211 its reverse (1122010201112), we get a palindrome (3233030303323).

The spelling of 2111020102211 in words is "two trillion, one hundred eleven billion, twenty million, one hundred two thousand, two hundred eleven".