2211122011011 has 4 divisors (see below), whose sum is σ = 2948162681352. Its totient is φ = 1474081340672.

The previous prime is 2211122011009. The next prime is 2211122011019. The reversal of 2211122011011 is 1101102211122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2211122011011 - 2¹ = 2211122011009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211122011019) 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, 368520335166 + ... + 368520335171.

It is an arithmetic number, because the mean of its divisors is an integer number (737040670338).

Almost surely, 2^{2211122011011} is an apocalyptic number.

2211122011011 is a deficient number, since it is larger than the sum of its proper divisors (737040670341).

2211122011011 is an equidigital number, since it uses as much as digits as its factorization.

2211122011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737040670340.

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

Adding to 2211122011011 its reverse (1101102211122), we get a palindrome (3312224222133).

The spelling of 2211122011011 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, eleven thousand, eleven".