322220421445 has 32 divisors (see below), whose sum is σ = 422401029120. Its totient is φ = 234524801280.

The previous prime is 322220421389. The next prime is 322220421473. The reversal of 322220421445 is 544124022223.

It is a happy number.

It is not a de Polignac number, because 322220421445 - 2¹³ = 322220413253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18816027 + ... + 18833143.

It is an arithmetic number, because the mean of its divisors is an integer number (13200032160).

Almost surely, 2^322220421445 is an apocalyptic number.

It is an amenable number.

322220421445 is a deficient number, since it is larger than the sum of its proper divisors (100180607675).

322220421445 is a wasteful number, since it uses less digits than its factorization.

322220421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21285.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 322220421445 its reverse (544124022223), we get a palindrome (866344443668).

The spelling of 322220421445 in words is "three hundred twenty-two billion, two hundred twenty million, four hundred twenty-one thousand, four hundred forty-five".