1420020221144 has 32 divisors (see below), whose sum is σ = 3203053132800. Its totient is φ = 576549563040.

The previous prime is 1420020221143. The next prime is 1420020221149. The reversal of 1420020221144 is 4411220200241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420020221141) 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, 667301672 + ... + 667303799.

It is an arithmetic number, because the mean of its divisors is an integer number (100095410400).

Almost surely, 2^{1420020221144} is an apocalyptic number.

1420020221144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1420020221144 is an abundant number, since it is smaller than the sum of its proper divisors (1783032911656).

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

1420020221144 is a wasteful number, since it uses less digits than its factorization.

1420020221144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334605503 (or 1334605499 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1420020221144 its reverse (4411220200241), we get a palindrome (5831240421385).

The spelling of 1420020221144 in words is "one trillion, four hundred twenty billion, twenty million, two hundred twenty-one thousand, one hundred forty-four".