245055122421020 has 12 divisors (see below), whose sum is σ = 514615757084184. Its totient is φ = 98022048968400.

The previous prime is 245055122421017. The next prime is 245055122421023. The reversal of 245055122421020 is 20124221550542.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (245055122421017) and next prime (245055122421023).

It is a super-2 number, since 2×245055122421020² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245055122421023) 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, 6126378060506 + ... + 6126378060545.

It is an arithmetic number, because the mean of its divisors is an integer number (42884646423682).

Almost surely, 2^{245055122421020} is an apocalyptic number.

245055122421020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245055122421020 is an abundant number, since it is smaller than the sum of its proper divisors (269560634663164).

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

245055122421020 is a wasteful number, since it uses less digits than its factorization.

245055122421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12252756121060 (or 12252756121058 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 245055122421020 its reverse (20124221550542), we get a palindrome (265179343971562).

The spelling of 245055122421020 in words is "two hundred forty-five trillion, fifty-five billion, one hundred twenty-two million, four hundred twenty-one thousand, twenty".