10201022021 has 8 divisors (see below), whose sum is σ = 10252268064. Its totient is φ = 10149831760.

The previous prime is 10201022011. The next prime is 10201022059. The reversal of 10201022021 is 12022010201.

It is a happy number.

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 10201022021 - 2¹⁴ = 10201005637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201021993 and 10201022011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201022011) 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, 380426 + ... + 406356.

It is an arithmetic number, because the mean of its divisors is an integer number (1281533508).

Almost surely, 2^10201022021 is an apocalyptic number.

It is an amenable number.

10201022021 is a deficient number, since it is larger than the sum of its proper divisors (51246043).

10201022021 is a wasteful number, since it uses less digits than its factorization.

10201022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27891.

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

Adding to 10201022021 its reverse (12022010201), we get a palindrome (22223032222).

The spelling of 10201022021 in words is "ten billion, two hundred one million, twenty-two thousand, twenty-one".