2220310031209 has 2 divisors, whose sum is σ = 2220310031210. Its totient is φ = 2220310031208.

The previous prime is 2220310031171. The next prime is 2220310031213. The reversal of 2220310031209 is 9021300130222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2175026191209 + 45283840000 = 1474797^2 + 212800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220310031209 - 2²¹ = 2220307934057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220310031299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110155015604 + 1110155015605.

It is an arithmetic number, because the mean of its divisors is an integer number (1110155015605).

Almost surely, 2^{2220310031209} is an apocalyptic number.

It is an amenable number.

2220310031209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220310031209 is an equidigital number, since it uses as much as digits as its factorization.

2220310031209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 2220310031209 in words is "two trillion, two hundred twenty billion, three hundred ten million, thirty-one thousand, two hundred nine".