10111220212011 has 16 divisors (see below), whose sum is σ = 13566110545440. Its totient is φ = 6698609350400.

The previous prime is 10111220211943. The next prime is 10111220212033. The reversal of 10111220212011 is 11021202211101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10111220212011 - 2¹⁷ = 10111220080939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10111220282011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3634290 + ... + 5781911.

It is an arithmetic number, because the mean of its divisors is an integer number (847881909090).

Almost surely, 2^{10111220212011} is an apocalyptic number.

10111220212011 is a deficient number, since it is larger than the sum of its proper divisors (3454890333429).

10111220212011 is a wasteful number, since it uses less digits than its factorization.

10111220212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9418446.

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

Adding to 10111220212011 its reverse (11021202211101), we get a palindrome (21132422423112).

The spelling of 10111220212011 in words is "ten trillion, one hundred eleven billion, two hundred twenty million, two hundred twelve thousand, eleven".