1442222120 has 32 divisors (see below), whose sum is σ = 3248363520. Its totient is φ = 576290880.

The previous prime is 1442222069. The next prime is 1442222123. The reversal of 1442222120 is 212222441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1442222092 and 1442222101.

It is not an unprimeable number, because it can be changed into a prime (1442222123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21449 + ... + 57831.

It is an arithmetic number, because the mean of its divisors is an integer number (101511360).

Almost surely, 2^1442222120 is an apocalyptic number.

1442222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442222120 is an abundant number, since it is smaller than the sum of its proper divisors (1806141400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442222120 is a wasteful number, since it uses less digits than its factorization.

1442222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37385 (or 37381 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1442222120 is about 37976.5996371450. The cubic root of 1442222120 is about 1129.8237958475.

Adding to 1442222120 its reverse (212222441), we get a palindrome (1654444561).

The spelling of 1442222120 in words is "one billion, four hundred forty-two million, two hundred twenty-two thousand, one hundred twenty".