2125422220 has 24 divisors (see below), whose sum is σ = 4482072000. Its totient is φ = 846609792.

The previous prime is 2125422181. The next prime is 2125422227. The reversal of 2125422220 is 222245212.

It is a super-2 number, since 2×2125422220² = 9034839226539456800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2125422191 and 2125422200.

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 7 ways as a sum of consecutive naturals, for example, 217545 + ... + 227104.

It is an arithmetic number, because the mean of its divisors is an integer number (186753000).

Almost surely, 2^2125422220 is an apocalyptic number.

2125422220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125422220 is an abundant number, since it is smaller than the sum of its proper divisors (2356649780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125422220 is a wasteful number, since it uses less digits than its factorization.

2125422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444897 (or 444895 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2125422220 is about 46102.3016778989. The cubic root of 2125422220 is about 1285.7259384364.

Adding to 2125422220 its reverse (222245212), we get a palindrome (2347667432).

The spelling of 2125422220 in words is "two billion, one hundred twenty-five million, four hundred twenty-two thousand, two hundred twenty".