12101002 has 4 divisors (see below), whose sum is σ = 18151506. Its totient is φ = 6050500.

The previous prime is 12100993. The next prime is 12101003. The reversal of 12101002 is 20010121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20010121 = 157 ⋅127453.

It can be written as a sum of positive squares in only one way, i.e., 7177041 + 4923961 = 2679^2 + 2219^2 .

It is not an unprimeable number, because it can be changed into a prime (12101003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025249 + ... + 3025252.

Almost surely, 2^12101002 is an apocalyptic number.

12101002 is a deficient number, since it is larger than the sum of its proper divisors (6050504).

12101002 is an equidigital number, since it uses as much as digits as its factorization.

12101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050503.

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

The square root of 12101002 is about 3478.6494505770. The cubic root of 12101002 is about 229.5833793769.

Adding to 12101002 its reverse (20010121), we get a palindrome (32111123).

The spelling of 12101002 in words is "twelve million, one hundred one thousand, two".