245120445212 has 12 divisors (see below), whose sum is σ = 429489713016. Its totient is φ = 122409098640.

The previous prime is 245120445209. The next prime is 245120445217. The reversal of 245120445212 is 212544021542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120445217) 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, 37777343 + ... + 37783830.

It is an arithmetic number, because the mean of its divisors is an integer number (35790809418).

Almost surely, 2^245120445212 is an apocalyptic number.

It is an amenable number.

245120445212 is a deficient number, since it is larger than the sum of its proper divisors (184369267804).

245120445212 is a wasteful number, since it uses less digits than its factorization.

245120445212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75561988 (or 75561986 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 245120445212 its reverse (212544021542), we get a palindrome (457664466754).

The spelling of 245120445212 in words is "two hundred forty-five billion, one hundred twenty million, four hundred forty-five thousand, two hundred twelve".