111011021102 has 4 divisors (see below), whose sum is σ = 166516531656. Its totient is φ = 55505510550.

The previous prime is 111011021101. The next prime is 111011021161. The reversal of 111011021102 is 201120110111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201120110111 = 3643 ⋅55207277.

It is a super-2 number, since 2×111011021102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011021101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752755274 + ... + 27752755277.

It is an arithmetic number, because the mean of its divisors is an integer number (41629132914).

Almost surely, 2^111011021102 is an apocalyptic number.

111011021102 is a deficient number, since it is larger than the sum of its proper divisors (55505510554).

111011021102 is an equidigital number, since it uses as much as digits as its factorization.

111011021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55505510553.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111011021102 its reverse (201120110111), we get a palindrome (312131131213).

The spelling of 111011021102 in words is "one hundred eleven billion, eleven million, twenty-one thousand, one hundred two".