200220121002002 has 4 divisors (see below), whose sum is σ = 300330181503006. Its totient is φ = 100110060501000.

The previous prime is 200220121001977. The next prime is 200220121002023. The reversal of 200220121002002 is 200200121022002.

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., 100174095707401 + 100046025294601 = 10008701^2 + 10002301^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055030250499 + ... + 50055030250502.

Almost surely, 2^{200220121002002} is an apocalyptic number.

200220121002002 is a deficient number, since it is larger than the sum of its proper divisors (100110060501004).

200220121002002 is a wasteful number, since it uses less digits than its factorization.

200220121002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100110060501003.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200220121002002 its reverse (200200121022002), we get a palindrome (400420242024004).

The spelling of 200220121002002 in words is "two hundred trillion, two hundred twenty billion, one hundred twenty-one million, two thousand, two".