145011522201 has 128 divisors (see below), whose sum is σ = 253016924160. Its totient is φ = 71738265600.

The previous prime is 145011522169. The next prime is 145011522217. The reversal of 145011522201 is 102225110541.

It is a happy number.

It is not a de Polignac number, because 145011522201 - 2⁵ = 145011522169 is a prime.

It is a super-2 number, since 2×145011522201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145011522281) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 388770651 + ... + 388771023.

It is an arithmetic number, because the mean of its divisors is an integer number (1976694720).

Almost surely, 2^145011522201 is an apocalyptic number.

It is an amenable number.

145011522201 is a deficient number, since it is larger than the sum of its proper divisors (108005401959).

145011522201 is a wasteful number, since it uses less digits than its factorization.

145011522201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 145011522201 its reverse (102225110541), we get a palindrome (247236632742).

The spelling of 145011522201 in words is "one hundred forty-five billion, eleven million, five hundred twenty-two thousand, two hundred one".