2119221225 has 189 divisors, whose sum is σ = 4474893927. Its totient is φ = 994356000.

The previous prime is 2119221199. The next prime is 2119221239. The reversal of 2119221225 is 5221229112.

It is a happy number.

The square root of 2119221225 is 46035.

It is a perfect power (a square), and thus also a powerful number.

2119221225 is a `hidden beast` number, since 211 + 9 + 221 + 225 = 666.

It can be written as a sum of positive squares in only one way, i.e., 762919641 + 1356301584 = 27621^2 + 36828^2 .

It is not a de Polignac number, because 2119221225 - 2¹¹ = 2119219177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 68361960 + ... + 68361990.

Almost surely, 2^2119221225 is an apocalyptic number.

2119221225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2119221225 is the 46035-th square number.

2119221225 is the 23018-th centered octagonal number.

It is an amenable number.

2119221225 is an abundant number, since it is smaller than the sum of its proper divisors (2355672702).

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

2119221225 is an equidigital number, since it uses as much as digits as its factorization.

2119221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 50 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The cubic root of 2119221225 is about 1284.4743367145.

The spelling of 2119221225 in words is "two billion, one hundred nineteen million, two hundred twenty-one thousand, two hundred twenty-five".