200001222121202 has 32 divisors (see below), whose sum is σ = 307572647482800. Its totient is φ = 97481063787520.

The previous prime is 200001222121201. The next prime is 200001222121223. The reversal of 200001222121202 is 202121222100002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 27938423633761 + 172062798487441 = 5285681^2 + 13117271^2 .

It is not an unprimeable number, because it can be changed into a prime (200001222121201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530661008 + ... + 531037764.

Almost surely, 2^{200001222121202} is an apocalyptic number.

200001222121202 is a deficient number, since it is larger than the sum of its proper divisors (107571425361598).

200001222121202 is a wasteful number, since it uses less digits than its factorization.

200001222121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382126.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200001222121202 its reverse (202121222100002), we get a palindrome (402122444221204).

The spelling of 200001222121202 in words is "two hundred trillion, one billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred two".