20211210200002 has 4 divisors (see below), whose sum is σ = 30316815300006. Its totient is φ = 10105605100000.

The previous prime is 20211210199937. The next prime is 20211210200003. The reversal of 20211210200002 is 20000201211202.

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., 15744873216361 + 4466336983641 = 3967981^2 + 2113371^2 .

It is not an unprimeable number, because it can be changed into a prime (20211210200003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052802549999 + ... + 5052802550002.

Almost surely, 2^{20211210200002} is an apocalyptic number.

20211210200002 is a deficient number, since it is larger than the sum of its proper divisors (10105605100004).

20211210200002 is a wasteful number, since it uses less digits than its factorization.

20211210200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105605100003.

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

Adding to 20211210200002 its reverse (20000201211202), we get a palindrome (40211411411204).

The spelling of 20211210200002 in words is "twenty trillion, two hundred eleven billion, two hundred ten million, two hundred thousand, two".