1420013221 has 8 divisors (see below), whose sum is σ = 1550124000. Its totient is φ = 1290072240.

The previous prime is 1420013201. The next prime is 1420013251. The reversal of 1420013221 is 1223100241.

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 1420013221 - 2¹⁵ = 1419980453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420013195 and 1420013204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420013201) 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, 24631 + ... + 58708.

It is an arithmetic number, because the mean of its divisors is an integer number (193765500).

Almost surely, 2^1420013221 is an apocalyptic number.

1420013221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1420013221 is a deficient number, since it is larger than the sum of its proper divisors (130110779).

1420013221 is a wasteful number, since it uses less digits than its factorization.

1420013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84899.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1420013221 is about 37683.0627868808. The cubic root of 1420013221 is about 1123.9943529328.

Adding to 1420013221 its reverse (1223100241), we get a palindrome (2643113462).

The spelling of 1420013221 in words is "one billion, four hundred twenty million, thirteen thousand, two hundred twenty-one".