1102002121 has 8 divisors (see below), whose sum is σ = 1202498784. Its totient is φ = 1001557920.

The previous prime is 1102002089. The next prime is 1102002133. The reversal of 1102002121 is 1212002011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1102002121 - 2⁵ = 1102002089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102002098 and 1102002107.

It is not an unprimeable number, because it can be changed into a prime (1102002721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40285 + ... + 61861.

It is an arithmetic number, because the mean of its divisors is an integer number (150312348).

Almost surely, 2^1102002121 is an apocalyptic number.

1102002121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102002121 is a deficient number, since it is larger than the sum of its proper divisors (100496663).

1102002121 is a wasteful number, since it uses less digits than its factorization.

1102002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26231.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1102002121 is about 33196.4172916295. The cubic root of 1102002121 is about 1032.9060236562.

Adding to 1102002121 its reverse (1212002011), we get a palindrome (2314004132).

The spelling of 1102002121 in words is "one billion, one hundred two million, two thousand, one hundred twenty-one".