11201022021111 has 64 divisors (see below), whose sum is σ = 16715460827520. Its totient is φ = 6624376012800.

The previous prime is 11201022021107. The next prime is 11201022021131. The reversal of 11201022021111 is 11112022010211.

It is a happy number.

It is not a de Polignac number, because 11201022021111 - 2² = 11201022021107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201022021131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 248133535 + ... + 248178671.

It is an arithmetic number, because the mean of its divisors is an integer number (261179075430).

Almost surely, 2^{11201022021111} is an apocalyptic number.

11201022021111 is a deficient number, since it is larger than the sum of its proper divisors (5514438806409).

11201022021111 is a wasteful number, since it uses less digits than its factorization.

11201022021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46196.

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

Adding to 11201022021111 its reverse (11112022010211), we get a palindrome (22313044031322).

The spelling of 11201022021111 in words is "eleven trillion, two hundred one billion, twenty-two million, twenty-one thousand, one hundred eleven".