1000210202221 has 8 divisors (see below), whose sum is σ = 1020076757784. Its totient is φ = 980455571520.

The previous prime is 1000210202219. The next prime is 1000210202249. The reversal of 1000210202221 is 1222020120001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116544400996 + 883665801225 = 341386^2 + 940035^2 .

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 1000210202221 - 2¹ = 1000210202219 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 (1000210202261) 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, 27963166 + ... + 27998911.

It is an arithmetic number, because the mean of its divisors is an integer number (127509594723).

Almost surely, 2^{1000210202221} is an apocalyptic number.

It is an amenable number.

1000210202221 is a deficient number, since it is larger than the sum of its proper divisors (19866555563).

1000210202221 is an equidigital number, since it uses as much as digits as its factorization.

1000210202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55962431.

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

Adding to 1000210202221 its reverse (1222020120001), we get a palindrome (2222230322222).

The spelling of 1000210202221 in words is "one trillion, two hundred ten million, two hundred two thousand, two hundred twenty-one".