120221413 has 4 divisors (see below), whose sum is σ = 129469228. Its totient is φ = 110973600.

The previous prime is 120221407. The next prime is 120221419. The reversal of 120221413 is 314122021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (120221407) and next prime (120221419).

It can be written as a sum of positive squares in 2 ways, for example, as 10349089 + 109872324 = 3217^2 + 10482^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221413 - 2¹³ = 120213221 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 (120221419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4623888 + ... + 4623913.

It is an arithmetic number, because the mean of its divisors is an integer number (32367307).

Almost surely, 2^120221413 is an apocalyptic number.

120221413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120221413 is a deficient number, since it is larger than the sum of its proper divisors (9247815).

120221413 is an equidigital number, since it uses as much as digits as its factorization.

120221413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247814.

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

The square root of 120221413 is about 10964.5525672505. The cubic root of 120221413 is about 493.5455903753.

Adding to 120221413 its reverse (314122021), we get a palindrome (434343434).

The spelling of 120221413 in words is "one hundred twenty million, two hundred twenty-one thousand, four hundred thirteen".