1111021102 has 4 divisors (see below), whose sum is σ = 1666531656. Its totient is φ = 555510550.

The previous prime is 1111021099. The next prime is 1111021103. The reversal of 1111021102 is 2011201111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111021103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277755274 + ... + 277755277.

It is an arithmetic number, because the mean of its divisors is an integer number (416632914).

Almost surely, 2^1111021102 is an apocalyptic number.

1111021102 is a deficient number, since it is larger than the sum of its proper divisors (555510554).

1111021102 is an equidigital number, since it uses as much as digits as its factorization.

1111021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555510553.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1111021102 is about 33331.9831693225. The cubic root of 1111021102 is about 1035.7161999725.

Adding to 1111021102 its reverse (2011201111), we get a palindrome (3122222213).

Subtracting 1111021102 from its reverse (2011201111), we obtain a square (900180009 = 30003²).

The spelling of 1111021102 in words is "one billion, one hundred eleven million, twenty-one thousand, one hundred two".