20001000212210 has 16 divisors (see below), whose sum is σ = 37243241775000. Its totient is φ = 7724524219776.

The previous prime is 20001000212201. The next prime is 20001000212251. The reversal of 20001000212210 is 1221200010002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16593915514969 + 3407084697241 = 4073563^2 + 1845829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20001000212191 and 20001000212200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34484482835 + ... + 34484483414.

Almost surely, 2^{20001000212210} is an apocalyptic number.

20001000212210 is a deficient number, since it is larger than the sum of its proper divisors (17242241562790).

20001000212210 is a wasteful number, since it uses less digits than its factorization.

20001000212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68968966285.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001000212210 its reverse (1221200010002), we get a palindrome (21222200222212).

The spelling of 20001000212210 in words is "twenty trillion, one billion, two hundred twelve thousand, two hundred ten".