2211021101211 has 16 divisors (see below), whose sum is σ = 3248632079616. Its totient is φ = 1328985848736.

The previous prime is 2211021101203. The next prime is 2211021101213. The reversal of 2211021101211 is 1121011201122.

It is a happy number.

It is not a de Polignac number, because 2211021101211 - 2³ = 2211021101203 is a prime.

It is a super-2 number, since 2×2211021101211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211021101213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659217495 + ... + 659220848.

It is an arithmetic number, because the mean of its divisors is an integer number (203039504976).

Almost surely, 2^{2211021101211} is an apocalyptic number.

2211021101211 is a deficient number, since it is larger than the sum of its proper divisors (1037610978405).

2211021101211 is a wasteful number, since it uses less digits than its factorization.

2211021101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318438402.

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

Adding to 2211021101211 its reverse (1121011201122), we get a palindrome (3332032302333).

The spelling of 2211021101211 in words is "two trillion, two hundred eleven billion, twenty-one million, one hundred one thousand, two hundred eleven".