20142201 has 4 divisors (see below), whose sum is σ = 26856272. Its totient is φ = 13428132.

The previous prime is 20142197. The next prime is 20142209. The reversal of 20142201 is 10224102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20142201 - 2² = 20142197 is a prime.

It is a super-2 number, since 2×20142201² = 811416522248802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20142209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3357031 + ... + 3357036.

It is an arithmetic number, because the mean of its divisors is an integer number (6714068).

Almost surely, 2^20142201 is an apocalyptic number.

It is an amenable number.

20142201 is a deficient number, since it is larger than the sum of its proper divisors (6714071).

20142201 is an equidigital number, since it uses as much as digits as its factorization.

20142201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714070.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20142201 is about 4488.0063502629. The cubic root of 20142201 is about 272.0835644701.

Adding to 20142201 its reverse (10224102), we get a palindrome (30366303).

The spelling of 20142201 in words is "twenty million, one hundred forty-two thousand, two hundred one".