2111002121211 has 8 divisors (see below), whose sum is σ = 2860811618064. Its totient is φ = 1384263685920.

The previous prime is 2111002121177. The next prime is 2111002121233. The reversal of 2111002121211 is 1121212001112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111002121211 - 2⁶ = 2111002121147 is a prime.

It is a super-2 number, since 2×2111002121211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111002121311) 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, 5767765176 + ... + 5767765541.

It is an arithmetic number, because the mean of its divisors is an integer number (357601452258).

Almost surely, 2^{2111002121211} is an apocalyptic number.

2111002121211 is a deficient number, since it is larger than the sum of its proper divisors (749809496853).

2111002121211 is a wasteful number, since it uses less digits than its factorization.

2111002121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11535530781.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111002121211 its reverse (1121212001112), we get a palindrome (3232214122323).

The spelling of 2111002121211 in words is "two trillion, one hundred eleven billion, two million, one hundred twenty-one thousand, two hundred eleven".