145221050206 has 16 divisors (see below), whose sum is σ = 230662540080. Its totient is φ = 68334179200.

The previous prime is 145221050203. The next prime is 145221050207. The reversal of 145221050206 is 602050122541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145221050203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319005 + ... + 626263.

It is an arithmetic number, because the mean of its divisors is an integer number (14416408755).

Almost surely, 2^145221050206 is an apocalyptic number.

145221050206 is a deficient number, since it is larger than the sum of its proper divisors (85441489874).

145221050206 is a wasteful number, since it uses less digits than its factorization.

145221050206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321179.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 145221050206 its reverse (602050122541), we get a palindrome (747271172747).

The spelling of 145221050206 in words is "one hundred forty-five billion, two hundred twenty-one million, fifty thousand, two hundred six".