2142101550 has 96 divisors (see below), whose sum is σ = 5722490880. Its totient is φ = 528739200.

The previous prime is 2142101543. The next prime is 2142101579. The reversal of 2142101550 is 551012412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96936 + ... + 116964.

It is an arithmetic number, because the mean of its divisors is an integer number (59609280).

Almost surely, 2^2142101550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142101550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2861245440).

2142101550 is an abundant number, since it is smaller than the sum of its proper divisors (3580389330).

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

2142101550 is a wasteful number, since it uses less digits than its factorization.

2142101550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098 (or 20093 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2142101550 is about 46282.8429334240. The cubic root of 2142101550 is about 1289.0804395446.

Adding to 2142101550 its reverse (551012412), we get a palindrome (2693113962).

The spelling of 2142101550 in words is "two billion, one hundred forty-two million, one hundred one thousand, five hundred fifty".