20210012120002 has 4 divisors (see below), whose sum is σ = 30315018180006. Its totient is φ = 10105006060000.

The previous prime is 20210012119939. The next prime is 20210012120033. The reversal of 20210012120002 is 20002121001202.

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., 16771654093041 + 3438358026961 = 4095321^2 + 1854281^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052503029999 + ... + 5052503030002.

Almost surely, 2^{20210012120002} is an apocalyptic number.

20210012120002 is a deficient number, since it is larger than the sum of its proper divisors (10105006060004).

20210012120002 is a wasteful number, since it uses less digits than its factorization.

20210012120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105006060003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20210012120002 its reverse (20002121001202), we get a palindrome (40212133121204).

The spelling of 20210012120002 in words is "twenty trillion, two hundred ten billion, twelve million, one hundred twenty thousand, two".