201033421001 has 16 divisors (see below), whose sum is σ = 243301677696. Its totient is φ = 162155325696.

The previous prime is 201033420997. The next prime is 201033421003. The reversal of 201033421001 is 100124330102.

It is not a de Polignac number, because 201033421001 - 2² = 201033420997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (201033421003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753935 + ... + 985131.

It is an arithmetic number, because the mean of its divisors is an integer number (15206354856).

Almost surely, 2^201033421001 is an apocalyptic number.

It is an amenable number.

201033421001 is a deficient number, since it is larger than the sum of its proper divisors (42268256695).

201033421001 is a wasteful number, since it uses less digits than its factorization.

201033421001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238528.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201033421001 its reverse (100124330102), we get a palindrome (301157751103).

The spelling of 201033421001 in words is "two hundred one billion, thirty-three million, four hundred twenty-one thousand, one".