2245201020 has 72 divisors (see below), whose sum is σ = 6814473120. Its totient is φ = 598366080.

The previous prime is 2245201019. The next prime is 2245201027. The reversal of 2245201020 is 201025422.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2245200984 and 2245201002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245201027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469401 + ... + 474159.

It is an arithmetic number, because the mean of its divisors is an integer number (94645460).

Almost surely, 2^2245201020 is an apocalyptic number.

2245201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245201020 is an abundant number, since it is smaller than the sum of its proper divisors (4569272100).

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

2245201020 is a wasteful number, since it uses less digits than its factorization.

2245201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395 (or 7390 counting only the distinct ones).

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

The square root of 2245201020 is about 47383.5522096012. The cubic root of 2245201020 is about 1309.4384128223.

Adding to 2245201020 its reverse (201025422), we get a palindrome (2446226442).

The spelling of 2245201020 in words is "two billion, two hundred forty-five million, two hundred one thousand, twenty".