2142020211 has 4 divisors (see below), whose sum is σ = 2856026952. Its totient is φ = 1428013472.

The previous prime is 2142020207. The next prime is 2142020263. The reversal of 2142020211 is 1120202412.

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

It is a cyclic number.

It is not a de Polignac number, because 2142020211 - 2² = 2142020207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142020201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 357003366 + ... + 357003371.

It is an arithmetic number, because the mean of its divisors is an integer number (714006738).

Almost surely, 2^2142020211 is an apocalyptic number.

2142020211 is a deficient number, since it is larger than the sum of its proper divisors (714006741).

2142020211 is an equidigital number, since it uses as much as digits as its factorization.

2142020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714006740.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2142020211 is about 46281.9642085338. The cubic root of 2142020211 is about 1289.0641231938.

Adding to 2142020211 its reverse (1120202412), we get a palindrome (3262222623).

The spelling of 2142020211 in words is "two billion, one hundred forty-two million, twenty thousand, two hundred eleven".