2211220121011 has 32 divisors (see below), whose sum is σ = 2584738598400. Its totient is φ = 1870529760000.

The previous prime is 2211220120979. The next prime is 2211220121021. The reversal of 2211220121011 is 1101210221122.

It is not a de Polignac number, because 2211220121011 - 2⁵ = 2211220120979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211220121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2415121 + ... + 3202381.

It is an arithmetic number, because the mean of its divisors is an integer number (80773081200).

Almost surely, 2^{2211220121011} is an apocalyptic number.

2211220121011 is a deficient number, since it is larger than the sum of its proper divisors (373518477389).

2211220121011 is a wasteful number, since it uses less digits than its factorization.

2211220121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787531.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2211220121011 its reverse (1101210221122), we get a palindrome (3312430342133).

The spelling of 2211220121011 in words is "two trillion, two hundred eleven billion, two hundred twenty million, one hundred twenty-one thousand, eleven".