11222121123011 has 2 divisors, whose sum is σ = 11222121123012. Its totient is φ = 11222121123010.

The previous prime is 11222121123001. The next prime is 11222121123097. The reversal of 11222121123011 is 11032112122211.

It is a weak prime.

It is an emirp because it is prime and its reverse (11032112122211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222121123011 is a prime.

It is a super-2 number, since 2×11222121123011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11222121123001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611060561505 + 5611060561506.

It is an arithmetic number, because the mean of its divisors is an integer number (5611060561506).

Almost surely, 2^{11222121123011} is an apocalyptic number.

11222121123011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222121123011 is an equidigital number, since it uses as much as digits as its factorization.

11222121123011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11222121123011 its reverse (11032112122211), we get a palindrome (22254233245222).

The spelling of 11222121123011 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-three thousand, eleven".