2215165200 has 120 divisors (see below), whose sum is σ = 7106756448. Its totient is φ = 589808640.

The previous prime is 2215165187. The next prime is 2215165201. The reversal of 2215165200 is 25615122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2215165201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1238707 + ... + 1240493.

Almost surely, 2^2215165200 is an apocalyptic number.

2215165200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215165200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3553378224).

2215165200 is an abundant number, since it is smaller than the sum of its proper divisors (4891591248).

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

2215165200 is a wasteful number, since it uses less digits than its factorization.

2215165200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2215165200 is about 47065.5415351826. The cubic root of 2215165200 is about 1303.5730501584.

The spelling of 2215165200 in words is "two billion, two hundred fifteen million, one hundred sixty-five thousand, two hundred".