21152010201 has 8 divisors (see below), whose sum is σ = 32231634624. Its totient is φ = 12086862960.

The previous prime is 21152010199. The next prime is 21152010221. The reversal of 21152010201 is 10201025112.

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

It is not a de Polignac number, because 21152010201 - 2¹ = 21152010199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21152010221) 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, 503619270 + ... + 503619311.

It is an arithmetic number, because the mean of its divisors is an integer number (4028954328).

Almost surely, 2^21152010201 is an apocalyptic number.

21152010201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21152010201 is a deficient number, since it is larger than the sum of its proper divisors (11079624423).

21152010201 is a wasteful number, since it uses less digits than its factorization.

21152010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007238591.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 21152010201 its reverse (10201025112), we get a palindrome (31353035313).

The spelling of 21152010201 in words is "twenty-one billion, one hundred fifty-two million, ten thousand, two hundred one".