10202200021 has 8 divisors (see below), whose sum is σ = 11633278104. Its totient is φ = 8863449600.

The previous prime is 10202199991. The next prime is 10202200033. The reversal of 10202200021 is 12000220201.

It can be written as a sum of positive squares in 4 ways, for example, as 1041030225 + 9161169796 = 32265^2 + 95714^2 .

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 10202200021 - 2⁵ = 10202199989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202199980 and 10202200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202200051) 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, 23081680 + ... + 23082121.

It is an arithmetic number, because the mean of its divisors is an integer number (1454159763).

Almost surely, 2^10202200021 is an apocalyptic number.

It is an amenable number.

10202200021 is a deficient number, since it is larger than the sum of its proper divisors (1431078083).

10202200021 is a wasteful number, since it uses less digits than its factorization.

10202200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46163831.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10202200021 its reverse (12000220201), we get a palindrome (22202420222).

The spelling of 10202200021 in words is "ten billion, two hundred two million, two hundred thousand, twenty-one".