200121001122002 has 4 divisors (see below), whose sum is σ = 300181501683006. Its totient is φ = 100060500561000.

The previous prime is 200121001121989. The next prime is 200121001122011. The reversal of 200121001122002 is 200221100121002.

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., 146405426235721 + 53715574886281 = 12099811^2 + 7329091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50030250280499 + ... + 50030250280502.

Almost surely, 2^{200121001122002} is an apocalyptic number.

200121001122002 is a deficient number, since it is larger than the sum of its proper divisors (100060500561004).

200121001122002 is a wasteful number, since it uses less digits than its factorization.

200121001122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100060500561003.

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

Adding to 200121001122002 its reverse (200221100121002), we get a palindrome (400342101243004).

The spelling of 200121001122002 in words is "two hundred trillion, one hundred twenty-one billion, one million, one hundred twenty-two thousand, two".