20002001210122 has 16 divisors (see below), whose sum is σ = 30279319943400. Its totient is φ = 9908900994240.

The previous prime is 20002001210089. The next prime is 20002001210153. The reversal of 20002001210122 is 22101210020002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19961406616761 + 40594593361 = 4467819^2 + 201481^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4682472 + ... + 7869532.

Almost surely, 2^{20002001210122} is an apocalyptic number.

20002001210122 is a deficient number, since it is larger than the sum of its proper divisors (10277318733278).

20002001210122 is a wasteful number, since it uses less digits than its factorization.

20002001210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215961.

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

Adding to 20002001210122 its reverse (22101210020002), we get a palindrome (42103211230124).

The spelling of 20002001210122 in words is "twenty trillion, two billion, one million, two hundred ten thousand, one hundred twenty-two".