2012220212117 has 2 divisors, whose sum is σ = 2012220212118. Its totient is φ = 2012220212116.

The previous prime is 2012220212099. The next prime is 2012220212137. The reversal of 2012220212117 is 7112120222102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1466208578641 + 546011633476 = 1210871^2 + 738926^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012220212117 - 2⁶ = 2012220212053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012220212092 and 2012220212101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012220212137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006110106058 + 1006110106059.

It is an arithmetic number, because the mean of its divisors is an integer number (1006110106059).

Almost surely, 2^{2012220212117} is an apocalyptic number.

It is an amenable number.

2012220212117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012220212117 is an equidigital number, since it uses as much as digits as its factorization.

2012220212117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 2012220212117 its reverse (7112120222102), we get a palindrome (9124340434219).

The spelling of 2012220212117 in words is "two trillion, twelve billion, two hundred twenty million, two hundred twelve thousand, one hundred seventeen".