2011121012211 has 8 divisors (see below), whose sum is σ = 2718227487120. Its totient is φ = 1322380939392.

The previous prime is 2011121012141. The next prime is 2011121012227. The reversal of 2011121012211 is 1122101211102.

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 2011121012211 - 2⁹ = 2011121011699 is a prime.

It is a super-2 number, since 2×2011121012211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011121012111) 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, 4591600266 + ... + 4591600703.

It is an arithmetic number, because the mean of its divisors is an integer number (339778435890).

Almost surely, 2^{2011121012211} is an apocalyptic number.

2011121012211 is a deficient number, since it is larger than the sum of its proper divisors (707106474909).

2011121012211 is an equidigital number, since it uses as much as digits as its factorization.

2011121012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9183201045.

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

Adding to 2011121012211 its reverse (1122101211102), we get a palindrome (3133222223313).

The spelling of 2011121012211 in words is "two trillion, eleven billion, one hundred twenty-one million, twelve thousand, two hundred eleven".