212101112020001 has 2 divisors, whose sum is σ = 212101112020002. Its totient is φ = 212101112020000.

The previous prime is 212101112019917. The next prime is 212101112020079. The reversal of 212101112020001 is 100020211101212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200503334406400 + 11597777613601 = 14159920^2 + 3405551^2 .

It is a cyclic number.

It is not a de Polignac number, because 212101112020001 - 2²² = 212101107825697 is a prime.

It is not a weakly prime, because it can be changed into another prime (212101112022001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050556010000 + 106050556010001.

It is an arithmetic number, because the mean of its divisors is an integer number (106050556010001).

Almost surely, 2^{212101112020001} is an apocalyptic number.

It is an amenable number.

212101112020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101112020001 is an equidigital number, since it uses as much as digits as its factorization.

212101112020001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212101112020001 its reverse (100020211101212), we get a palindrome (312121323121213).

The spelling of 212101112020001 in words is "two hundred twelve trillion, one hundred one billion, one hundred twelve million, twenty thousand, one".