1422820217609 has 16 divisors (see below), whose sum is σ = 1711978416000. Its totient is φ = 1155160185984.

The previous prime is 1422820217561. The next prime is 1422820217627. The reversal of 1422820217609 is 9067120282241.

It is a de Polignac number, because none of the positive numbers 2^k-1422820217609 is a prime.

It is a super-2 number, since 2×1422820217609² (a number of 25 digits) contains 22 as substring.

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 1422820217609.

It is not an unprimeable number, because it can be changed into a prime (1422820207609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256922 + ... + 1706355.

It is an arithmetic number, because the mean of its divisors is an integer number (106998651000).

Almost surely, 2^{1422820217609} is an apocalyptic number.

1422820217609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1422820217609 is a deficient number, since it is larger than the sum of its proper divisors (289158198391).

1422820217609 is a wasteful number, since it uses less digits than its factorization.

1422820217609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968752.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 1422820217609 in words is "one trillion, four hundred twenty-two billion, eight hundred twenty million, two hundred seventeen thousand, six hundred nine".