215010120 has 64 divisors (see below), whose sum is σ = 694653120. Its totient is φ = 52925184.

The previous prime is 215010119. The next prime is 215010121. The reversal of 215010120 is 21010512.

It is an interprime number because it is at equal distance from previous prime (215010119) and next prime (215010121).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 215010096 and 215010105.

It is not an unprimeable number, because it can be changed into a prime (215010121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67354 + ... + 70473.

It is an arithmetic number, because the mean of its divisors is an integer number (10853955).

Almost surely, 2^215010120 is an apocalyptic number.

215010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215010120 is an abundant number, since it is smaller than the sum of its proper divisors (479643000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215010120 is a wasteful number, since it uses less digits than its factorization.

215010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137854 (or 137850 counting only the distinct ones).

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

The square root of 215010120 is about 14663.2233836902. The cubic root of 215010120 is about 599.0820407453.

Adding to 215010120 its reverse (21010512), we get a palindrome (236020632).

The spelling of 215010120 in words is "two hundred fifteen million, ten thousand, one hundred twenty".