201024021 has 8 divisors (see below), whose sum is σ = 292398624. Its totient is φ = 121832720.

The previous prime is 201024017. The next prime is 201024023. The reversal of 201024021 is 120420102.

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

It is a cyclic number.

It is not a de Polignac number, because 201024021 - 2² = 201024017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201023988 and 201024006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201024023) 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, 3045786 + ... + 3045851.

It is an arithmetic number, because the mean of its divisors is an integer number (36549828).

Almost surely, 2^201024021 is an apocalyptic number.

It is an amenable number.

201024021 is a deficient number, since it is larger than the sum of its proper divisors (91374603).

201024021 is a wasteful number, since it uses less digits than its factorization.

201024021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091651.

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

The square root of 201024021 is about 14178.2940088009. The cubic root of 201024021 is about 585.7999342273.

Adding to 201024021 its reverse (120420102), we get a palindrome (321444123).

The spelling of 201024021 in words is "two hundred one million, twenty-four thousand, twenty-one".