2125422217 has 4 divisors (see below), whose sum is σ = 2193984256. Its totient is φ = 2056860180.

The previous prime is 2125422181. The next prime is 2125422227. The reversal of 2125422217 is 7122245212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2125422217 - 2¹⁵ = 2125389449 is a prime.

It is a super-3 number, since 3×2125422217³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125422227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34280973 + ... + 34281034.

It is an arithmetic number, because the mean of its divisors is an integer number (548496064).

Almost surely, 2^2125422217 is an apocalyptic number.

It is an amenable number.

2125422217 is a deficient number, since it is larger than the sum of its proper divisors (68562039).

2125422217 is an equidigital number, since it uses as much as digits as its factorization.

2125422217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68562038.

The product of its digits is 4480, while the sum is 28.

The square root of 2125422217 is about 46102.3016453626. The cubic root of 2125422217 is about 1285.7259378315.

Adding to 2125422217 its reverse (7122245212), we get a palindrome (9247667429).

The spelling of 2125422217 in words is "two billion, one hundred twenty-five million, four hundred twenty-two thousand, two hundred seventeen".