2142220134 has 16 divisors (see below), whose sum is σ = 4291976880. Its totient is φ = 712817280.

The previous prime is 2142220081. The next prime is 2142220141. The reversal of 2142220134 is 4310222412.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142220134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310327 + ... + 317154.

It is an arithmetic number, because the mean of its divisors is an integer number (268248555).

Almost surely, 2^2142220134 is an apocalyptic number.

2142220134 is an abundant number, since it is smaller than the sum of its proper divisors (2149756746).

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

2142220134 is a wasteful number, since it uses less digits than its factorization.

2142220134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628055.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2142220134 is about 46284.1239951671. The cubic root of 2142220134 is about 1289.1042263868.

Adding to 2142220134 its reverse (4310222412), we get a palindrome (6452442546).

The spelling of 2142220134 in words is "two billion, one hundred forty-two million, two hundred twenty thousand, one hundred thirty-four".