1422221021545 has 8 divisors (see below), whose sum is σ = 1742977252224. Its totient is φ = 1113568799664.

The previous prime is 1422221021527. The next prime is 1422221021579. The reversal of 1422221021545 is 5451201222241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1422221021545 - 2¹⁷ = 1422220890473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3026001939 + ... + 3026002408.

It is an arithmetic number, because the mean of its divisors is an integer number (217872156528).

Almost surely, 2^{1422221021545} is an apocalyptic number.

It is an amenable number.

1422221021545 is a deficient number, since it is larger than the sum of its proper divisors (320756230679).

1422221021545 is an equidigital number, since it uses as much as digits as its factorization.

1422221021545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052004399.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 1422221021545 its reverse (5451201222241), we get a palindrome (6873422243786).

The spelling of 1422221021545 in words is "one trillion, four hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, five hundred forty-five".