145320221022 has 32 divisors (see below), whose sum is σ = 291976260000. Its totient is φ = 48217534848.

The previous prime is 145320220999. The next prime is 145320221023. The reversal of 145320221022 is 220122023541.

145320221022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145320221022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145320220983 and 145320221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145320221023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7889928 + ... + 7908324.

It is an arithmetic number, because the mean of its divisors is an integer number (9124258125).

Almost surely, 2^145320221022 is an apocalyptic number.

145320221022 is an abundant number, since it is smaller than the sum of its proper divisors (146656038978).

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

145320221022 is a wasteful number, since it uses less digits than its factorization.

145320221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24380.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 145320221022 its reverse (220122023541), we get a palindrome (365442244563).

The spelling of 145320221022 in words is "one hundred forty-five billion, three hundred twenty million, two hundred twenty-one thousand, twenty-two".