20001102212207 has 2 divisors, whose sum is σ = 20001102212208. Its totient is φ = 20001102212206.

The previous prime is 20001102212197. The next prime is 20001102212227. The reversal of 20001102212207 is 70221220110002.

It is an a-pointer prime, because the next prime (20001102212227) can be obtained adding 20001102212207 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20001102212207 - 2²² = 20001098017903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001102212227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000551106103 + 10000551106104.

It is an arithmetic number, because the mean of its divisors is an integer number (10000551106104).

Almost surely, 2^{20001102212207} is an apocalyptic number.

20001102212207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001102212207 is an equidigital number, since it uses as much as digits as its factorization.

20001102212207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 20001102212207 its reverse (70221220110002), we get a palindrome (90222322322209).

The spelling of 20001102212207 in words is "twenty trillion, one billion, one hundred two million, two hundred twelve thousand, two hundred seven".