2142204101 has 8 divisors (see below), whose sum is σ = 2167372440. Its totient is φ = 2117060352.

The previous prime is 2142204049. The next prime is 2142204109. The reversal of 2142204101 is 1014022412.

It can be written as a sum of positive squares in 4 ways, for example, as 612612001 + 1529592100 = 24751^2 + 39110^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142204101 is a prime.

It is a Duffinian number.

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 2142204101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142204109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215231 + ... + 224963.

It is an arithmetic number, because the mean of its divisors is an integer number (270921555).

Almost surely, 2^2142204101 is an apocalyptic number.

It is an amenable number.

2142204101 is a deficient number, since it is larger than the sum of its proper divisors (25168339).

2142204101 is an equidigital number, since it uses as much as digits as its factorization.

2142204101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12295.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2142204101 is about 46283.9507929044. The cubic root of 2142204101 is about 1289.1010103681.

Adding to 2142204101 its reverse (1014022412), we get a palindrome (3156226513).

The spelling of 2142204101 in words is "two billion, one hundred forty-two million, two hundred four thousand, one hundred one".