201224142445 has 4 divisors (see below), whose sum is σ = 241468970940. Its totient is φ = 160979313952.

The previous prime is 201224142401. The next prime is 201224142461. The reversal of 201224142445 is 544241422102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153442991524 + 47781150921 = 391718^2 + 218589^2 .

It is a cyclic number.

It is not a de Polignac number, because 201224142445 - 2¹³ = 201224134253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20122414240 + ... + 20122414249.

It is an arithmetic number, because the mean of its divisors is an integer number (60367242735).

Almost surely, 2^201224142445 is an apocalyptic number.

It is an amenable number.

201224142445 is a deficient number, since it is larger than the sum of its proper divisors (40244828495).

201224142445 is an equidigital number, since it uses as much as digits as its factorization.

201224142445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40244828494.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 201224142445 its reverse (544241422102), we get a palindrome (745465564547).

The spelling of 201224142445 in words is "two hundred one billion, two hundred twenty-four million, one hundred forty-two thousand, four hundred forty-five".