10203222021 has 16 divisors (see below), whose sum is σ = 13761620928. Its totient is φ = 6723891200.

The previous prime is 10203222017. The next prime is 10203222049. The reversal of 10203222021 is 12022230201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10203222021 - 2² = 10203222017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203222521) 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, 50491 + ... + 151511.

It is an arithmetic number, because the mean of its divisors is an integer number (860101308).

Almost surely, 2^10203222021 is an apocalyptic number.

It is an amenable number.

10203222021 is a deficient number, since it is larger than the sum of its proper divisors (3558398907).

10203222021 is a wasteful number, since it uses less digits than its factorization.

10203222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101412.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10203222021 its reverse (12022230201), we get a palindrome (22225452222).

The spelling of 10203222021 in words is "ten billion, two hundred three million, two hundred twenty-two thousand, twenty-one".