2125218150 has 144 divisors (see below), whose sum is σ = 6317595648. Its totient is φ = 507864000.

The previous prime is 2125218143. The next prime is 2125218157. The reversal of 2125218150 is 518125212.

It is a happy number.

2125218150 is a `hidden beast` number, since 2 + 12 + 521 + 81 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (2125218143) and next prime (2125218157).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125218157) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 348427 + ... + 354473.

It is an arithmetic number, because the mean of its divisors is an integer number (43872192).

Almost surely, 2^2125218150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125218150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3158797824).

2125218150 is an abundant number, since it is smaller than the sum of its proper divisors (4192377498).

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

2125218150 is a wasteful number, since it uses less digits than its factorization.

2125218150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147 (or 6139 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 2125218150 is about 46100.0883947092. The cubic root of 2125218150 is about 1285.6847879476.

The spelling of 2125218150 in words is "two billion, one hundred twenty-five million, two hundred eighteen thousand, one hundred fifty".