2012020111217 has 2 divisors, whose sum is σ = 2012020111218. Its totient is φ = 2012020111216.

The previous prime is 2012020111193. The next prime is 2012020111337. The reversal of 2012020111217 is 7121110202102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1091103504481 + 920916606736 = 1044559^2 + 959644^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012020111217 - 2¹⁶ = 2012020045681 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012020114217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006010055608 + 1006010055609.

It is an arithmetic number, because the mean of its divisors is an integer number (1006010055609).

Almost surely, 2^{2012020111217} is an apocalyptic number.

It is an amenable number.

2012020111217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012020111217 is an equidigital number, since it uses as much as digits as its factorization.

2012020111217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 2012020111217 its reverse (7121110202102), we get a palindrome (9133130313319).

The spelling of 2012020111217 in words is "two trillion, twelve billion, twenty million, one hundred eleven thousand, two hundred seventeen".