2142142201 has 4 divisors (see below), whose sum is σ = 2144790900. Its totient is φ = 2139493504.

The previous prime is 2142142199. The next prime is 2142142259. The reversal of 2142142201 is 1022412412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1272776976 + 869365225 = 35676^2 + 29485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142142201 - 2¹ = 2142142199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142148201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323136 + ... + 1324753.

It is an arithmetic number, because the mean of its divisors is an integer number (536197725).

Almost surely, 2^2142142201 is an apocalyptic number.

It is an amenable number.

2142142201 is a deficient number, since it is larger than the sum of its proper divisors (2648699).

2142142201 is an equidigital number, since it uses as much as digits as its factorization.

2142142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648698.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2142142201 is about 46283.2820897568. The cubic root of 2142142201 is about 1289.0885938542.

Adding to 2142142201 its reverse (1022412412), we get a palindrome (3164554613).

The spelling of 2142142201 in words is "two billion, one hundred forty-two million, one hundred forty-two thousand, two hundred one".