10020012120002 has 4 divisors (see below), whose sum is σ = 15030018180006. Its totient is φ = 5010006060000.

The previous prime is 10020012119893. The next prime is 10020012120029. The reversal of 10020012120002 is 20002121002001.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 9288834922081 + 731177197921 = 3047759^2 + 855089^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505003029999 + ... + 2505003030002.

Almost surely, 2^{10020012120002} is an apocalyptic number.

10020012120002 is a deficient number, since it is larger than the sum of its proper divisors (5010006060004).

10020012120002 is an equidigital number, since it uses as much as digits as its factorization.

10020012120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010006060003.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10020012120002 its reverse (20002121002001), we get a palindrome (30022133122003).

The spelling of 10020012120002 in words is "ten trillion, twenty billion, twelve million, one hundred twenty thousand, two".