22145320151 has 4 divisors (see below), whose sum is σ = 22150656672. Its totient is φ = 22139983632.

The previous prime is 22145320139. The next prime is 22145320213. The reversal of 22145320151 is 15102354122.

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

It is a cyclic number.

It is not a de Polignac number, because 22145320151 - 2¹⁴ = 22145303767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22145320151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145320121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662031 + ... + 2670336.

It is an arithmetic number, because the mean of its divisors is an integer number (5537664168).

Almost surely, 2^22145320151 is an apocalyptic number.

22145320151 is a deficient number, since it is larger than the sum of its proper divisors (5336521).

22145320151 is an equidigital number, since it uses as much as digits as its factorization.

22145320151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336520.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 22145320151 its reverse (15102354122), we get a palindrome (37247674273).

The spelling of 22145320151 in words is "twenty-two billion, one hundred forty-five million, three hundred twenty thousand, one hundred fifty-one".