245151142222220 has 96 divisors (see below), whose sum is σ = 561122946840960. Its totient is φ = 89424502548480.

The previous prime is 245151142222183. The next prime is 245151142222247. The reversal of 245151142222220 is 22222241151542.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22843049 + ... + 31813631.

It is an arithmetic number, because the mean of its divisors is an integer number (5845030696260).

Almost surely, 2^{245151142222220} is an apocalyptic number.

245151142222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245151142222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280561473420480).

245151142222220 is an abundant number, since it is smaller than the sum of its proper divisors (315971804618740).

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

245151142222220 is a wasteful number, since it uses less digits than its factorization.

245151142222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971875 (or 8971873 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 245151142222220 its reverse (22222241151542), we get a palindrome (267373383373762).

The spelling of 245151142222220 in words is "two hundred forty-five trillion, one hundred fifty-one billion, one hundred forty-two million, two hundred twenty-two thousand, two hundred twenty".