10203202022021 has 8 divisors (see below), whose sum is σ = 10209366749400. Its totient is φ = 10197037647360.

The previous prime is 10203202021997. The next prime is 10203202022033. The reversal of 10203202022021 is 12022020230201.

It can be written as a sum of positive squares in 4 ways, for example, as 148525452100 + 10054676569921 = 385390^2 + 3170911^2 .

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 10203202022021 - 2³⁸ = 9928324115077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203202022051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78853145 + ... + 78982433.

It is an arithmetic number, because the mean of its divisors is an integer number (1276170843675).

Almost surely, 2^{10203202022021} is an apocalyptic number.

It is an amenable number.

10203202022021 is a deficient number, since it is larger than the sum of its proper divisors (6164727379).

10203202022021 is a wasteful number, since it uses less digits than its factorization.

10203202022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176359.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10203202022021 its reverse (12022020230201), we get a palindrome (22225222252222).

The spelling of 10203202022021 in words is "ten trillion, two hundred three billion, two hundred two million, twenty-two thousand, twenty-one".