120001215 has 16 divisors (see below), whose sum is σ = 203296608. Its totient is φ = 60235776.

The previous prime is 120001201. The next prime is 120001229. The reversal of 120001215 is 512100021.

It is an interprime number because it is at equal distance from previous prime (120001201) and next prime (120001229).

It is not a de Polignac number, because 120001215 - 2⁹ = 120000703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120001215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235042 + ... + 235551.

It is an arithmetic number, because the mean of its divisors is an integer number (12706038).

Almost surely, 2^120001215 is an apocalyptic number.

120001215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120001215 is a deficient number, since it is larger than the sum of its proper divisors (83295393).

120001215 is a wasteful number, since it uses less digits than its factorization.

120001215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470618.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 120001215 is about 10954.5066068719. The cubic root of 120001215 is about 493.2440795536.

Adding to 120001215 its reverse (512100021), we get a palindrome (632101236).

The spelling of 120001215 in words is "one hundred twenty million, one thousand, two hundred fifteen".