1000021212241 has 2 divisors, whose sum is σ = 1000021212242. Its totient is φ = 1000021212240.

The previous prime is 1000021212199. The next prime is 1000021212293. The reversal of 1000021212241 is 1422121200001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 991617640000 + 8403572241 = 995800^2 + 91671^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000021212241 - 2¹¹ = 1000021210193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000021212041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010606120 + 500010606121.

It is an arithmetic number, because the mean of its divisors is an integer number (500010606121).

Almost surely, 2^{1000021212241} is an apocalyptic number.

It is an amenable number.

1000021212241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000021212241 is an equidigital number, since it uses as much as digits as its factorization.

1000021212241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1000021212241 its reverse (1422121200001), we get a palindrome (2422142412242).

The spelling of 1000021212241 in words is "one trillion, twenty-one million, two hundred twelve thousand, two hundred forty-one".