120222421 has 8 divisors (see below), whose sum is σ = 132451488. Its totient is φ = 108210000.

The previous prime is 120222407. The next prime is 120222439. The reversal of 120222421 is 124222021.

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 120222421 - 2⁷ = 120222293 is a prime.

It is a super-2 number, since 2×120222421² = 28906861022202482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120222395 and 120222404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120222451) 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, 52995 + ... + 55216.

It is an arithmetic number, because the mean of its divisors is an integer number (16556436).

Almost surely, 2^120222421 is an apocalyptic number.

120222421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120222421 is a deficient number, since it is larger than the sum of its proper divisors (12229067).

120222421 is a wasteful number, since it uses less digits than its factorization.

120222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108323.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 120222421 is about 10964.5985334621. The cubic root of 120222421 is about 493.5469697540.

Adding to 120222421 its reverse (124222021), we get a palindrome (244444442).

The spelling of 120222421 in words is "one hundred twenty million, two hundred twenty-two thousand, four hundred twenty-one".