1021102 has 4 divisors (see below), whose sum is σ = 1531656. Its totient is φ = 510550.

The previous prime is 1021093. The next prime is 1021123. The reversal of 1021102 is 2011201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255274 + ... + 255277.

It is an arithmetic number, because the mean of its divisors is an integer number (382914).

2^1021102 is an apocalyptic number.

1021102 is a deficient number, since it is larger than the sum of its proper divisors (510554).

1021102 is an equidigital number, since it uses as much as digits as its factorization.

1021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510553.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1021102 is about 1010.4959178542. The cubic root of 1021102 is about 100.6985094845.

Adding to 1021102 its reverse (2011201), we get a palindrome (3032303).

Subtracting 1021102 from its reverse (2011201), we obtain a palindrome (990099).

It can be divided in two parts, 10 and 21102, that added together give a palindrome (21112).

The spelling of 1021102 in words is "one million, twenty-one thousand, one hundred two".