201014021 has 8 divisors (see below), whose sum is σ = 221757144. Its totient is φ = 181025280.

The previous prime is 201013991. The next prime is 201014071. The reversal of 201014021 is 120410102.

It can be written as a sum of positive squares in 4 ways, for example, as 3189796 + 197824225 = 1786^2 + 14065^2 .

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-201014021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201013993 and 201014011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201014071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188036 + ... + 189101.

It is an arithmetic number, because the mean of its divisors is an integer number (27719643).

Almost surely, 2^201014021 is an apocalyptic number.

It is an amenable number.

201014021 is a deficient number, since it is larger than the sum of its proper divisors (20743123).

201014021 is a wasteful number, since it uses less digits than its factorization.

201014021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377191.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 201014021 is about 14177.9413526788. The cubic root of 201014021 is about 585.7902204686.

Adding to 201014021 its reverse (120410102), we get a palindrome (321424123).

The spelling of 201014021 in words is "two hundred one million, fourteen thousand, twenty-one".