1420241213221 has 8 divisors (see below), whose sum is σ = 1420950944088. Its totient is φ = 1419531648000.

The previous prime is 1420241213213. The next prime is 1420241213267. The reversal of 1420241213221 is 1223121420241.

It can be written as a sum of positive squares in 4 ways, for example, as 119760984225 + 1300480228996 = 346065^2 + 1140386^2 .

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 1420241213221 - 2³ = 1420241213213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420241213201) 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, 19307091 + ... + 19380511.

It is an arithmetic number, because the mean of its divisors is an integer number (177618868011).

Almost surely, 2^{1420241213221} is an apocalyptic number.

It is an amenable number.

1420241213221 is a deficient number, since it is larger than the sum of its proper divisors (709730867).

1420241213221 is an equidigital number, since it uses as much as digits as its factorization.

1420241213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82823.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1420241213221 its reverse (1223121420241), we get a palindrome (2643362633462).

The spelling of 1420241213221 in words is "one trillion, four hundred twenty billion, two hundred forty-one million, two hundred thirteen thousand, two hundred twenty-one".