2225020181 has 2 divisors, whose sum is σ = 2225020182. Its totient is φ = 2225020180.

The previous prime is 2225020153. The next prime is 2225020307. The reversal of 2225020181 is 1810205222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2103689956 + 121330225 = 45866^2 + 11015^2 .

It is a cyclic number.

It is not a de Polignac number, because 2225020181 - 2³⁰ = 1151278357 is a prime.

It is a super-2 number, since 2×2225020181² = 9901429611714545522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2225020481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112510090 + 1112510091.

It is an arithmetic number, because the mean of its divisors is an integer number (1112510091).

Almost surely, 2^2225020181 is an apocalyptic number.

It is an amenable number.

2225020181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2225020181 is an equidigital number, since it uses as much as digits as its factorization.

2225020181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 2225020181 is about 47170.1195779701. The cubic root of 2225020181 is about 1305.5033326056.

The spelling of 2225020181 in words is "two billion, two hundred twenty-five million, twenty thousand, one hundred eighty-one".