11221121102011 has 32 divisors (see below), whose sum is σ = 11730141722880. Its totient is φ = 10727806320000.

The previous prime is 11221121101973. The next prime is 11221121102033. The reversal of 11221121102011 is 11020112112211.

It is a cyclic number.

It is not a de Polignac number, because 11221121102011 - 2¹⁵ = 11221121069243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221121102311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109713445 + ... + 109815673.

It is an arithmetic number, because the mean of its divisors is an integer number (366566928840).

Almost surely, 2^{11221121102011} is an apocalyptic number.

11221121102011 is a deficient number, since it is larger than the sum of its proper divisors (509020620869).

11221121102011 is a wasteful number, since it uses less digits than its factorization.

11221121102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102715.

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

Adding to 11221121102011 its reverse (11020112112211), we get a palindrome (22241233214222).

The spelling of 11221121102011 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred two thousand, eleven".