2201022225 has 36 divisors (see below), whose sum is σ = 4149771600. Its totient is φ = 1112093280.

The previous prime is 2201022221. The next prime is 2201022233. The reversal of 2201022225 is 5222201022.

It is not a de Polignac number, because 2201022225 - 2² = 2201022221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201022198 and 2201022207.

It is not an unprimeable number, because it can be changed into a prime (2201022221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 253155 + ... + 261704.

Almost surely, 2^2201022225 is an apocalyptic number.

2201022225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2201022225 is a deficient number, since it is larger than the sum of its proper divisors (1948749375).

2201022225 is a wasteful number, since it uses less digits than its factorization.

2201022225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514894 (or 514886 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2201022225 is about 46915.0532878308. The cubic root of 2201022225 is about 1300.7928546134.

Adding to 2201022225 its reverse (5222201022), we get a palindrome (7423223247).

The spelling of 2201022225 in words is "two billion, two hundred one million, twenty-two thousand, two hundred twenty-five".