20501201 has 8 divisors (see below), whose sum is σ = 24808320. Its totient is φ = 16538688.

The previous prime is 20501197. The next prime is 20501203. The reversal of 20501201 is 10210502.

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

It is not a de Polignac number, because 20501201 - 2² = 20501197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20501203) 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, 86021 + ... + 86258.

It is an arithmetic number, because the mean of its divisors is an integer number (3101040).

Almost surely, 2^20501201 is an apocalyptic number.

It is an amenable number.

20501201 is a deficient number, since it is larger than the sum of its proper divisors (4307119).

20501201 is a wasteful number, since it uses less digits than its factorization.

20501201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172303.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 20501201 is about 4527.8251953891. The cubic root of 20501201 is about 273.6905282844.

Adding to 20501201 its reverse (10210502), we get a palindrome (30711703).

It can be divided in two parts, 20501 and 201, that added together give a palindrome (20702).

The spelling of 20501201 in words is "twenty million, five hundred one thousand, two hundred one".