200121210002102 has 4 divisors (see below), whose sum is σ = 300181815003156. Its totient is φ = 100060605001050.

The previous prime is 200121210002047. The next prime is 200121210002137. The reversal of 200121210002102 is 201200012121002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50030302500524 + ... + 50030302500527.

It is an arithmetic number, because the mean of its divisors is an integer number (75045453750789).

Almost surely, 2^{200121210002102} is an apocalyptic number.

200121210002102 is a deficient number, since it is larger than the sum of its proper divisors (100060605001054).

200121210002102 is a wasteful number, since it uses less digits than its factorization.

200121210002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100060605001053.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200121210002102 its reverse (201200012121002), we get a palindrome (401321222123104).

The spelling of 200121210002102 in words is "two hundred trillion, one hundred twenty-one billion, two hundred ten million, two thousand, one hundred two".