120244215 has 64 divisors (see below), whose sum is σ = 238887936. Its totient is φ = 50291712.

The previous prime is 120244177. The next prime is 120244219. The reversal of 120244215 is 512442021.

It is not a de Polignac number, because 120244215 - 2²⁰ = 119195639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 120244191 and 120244200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120244219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 186684 + ... + 187326.

It is an arithmetic number, because the mean of its divisors is an integer number (3732624).

Almost surely, 2^120244215 is an apocalyptic number.

120244215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120244215 is a deficient number, since it is larger than the sum of its proper divisors (118643721).

120244215 is a wasteful number, since it uses less digits than its factorization.

120244215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 120244215 is about 10965.5923232628. The cubic root of 120244215 is about 493.5767914590.

Adding to 120244215 its reverse (512442021), we get a palindrome (632686236).

The spelling of 120244215 in words is "one hundred twenty million, two hundred forty-four thousand, two hundred fifteen".