202210201021 has 6 divisors (see below), whose sum is σ = 213412982622. Its totient is φ = 191567558520.

The previous prime is 202210201013. The next prime is 202210201091. The reversal of 202210201021 is 120102012202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 113340628921 + 88869572100 = 336661^2 + 298110^2 .

It is not a de Polignac number, because 202210201021 - 2³ = 202210201013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202210200992 and 202210201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210201001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280069170 + ... + 280069891.

It is an arithmetic number, because the mean of its divisors is an integer number (35568830437).

Almost surely, 2^202210201021 is an apocalyptic number.

It is an amenable number.

202210201021 is a deficient number, since it is larger than the sum of its proper divisors (11202781601).

202210201021 is an equidigital number, since it uses as much as digits as its factorization.

202210201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560139099 (or 560139080 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202210201021 its reverse (120102012202), we get a palindrome (322312213223).

The spelling of 202210201021 in words is "two hundred two billion, two hundred ten million, two hundred one thousand, twenty-one".