10111221202011 has 16 divisors (see below), whose sum is σ = 13848506227200. Its totient is φ = 6557441198688.

The previous prime is 10111221202007. The next prime is 10111221202057. The reversal of 10111221202011 is 11020212211101.

It is a happy number.

It is not a de Polignac number, because 10111221202011 - 2² = 10111221202007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10111221203011) 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, 7639981 + ... + 8865198.

It is an arithmetic number, because the mean of its divisors is an integer number (865531639200).

Almost surely, 2^{10111221202011} is an apocalyptic number.

10111221202011 is a deficient number, since it is larger than the sum of its proper divisors (3737285025189).

10111221202011 is a wasteful number, since it uses less digits than its factorization.

10111221202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16510738.

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

Adding to 10111221202011 its reverse (11020212211101), we get a palindrome (21131433413112).

It can be divided in two parts, 10111 and 221202011, that added together give a palindrome (221212122).

The spelling of 10111221202011 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred two thousand, eleven".