1021122243241 has 4 divisors (see below), whose sum is σ = 1021128498900. Its totient is φ = 1021115987584.

The previous prime is 1021122243227. The next prime is 1021122243257. The reversal of 1021122243241 is 1423422211201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 775111203216 + 246011040025 = 880404^2 + 495995^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021122243241 - 2⁹ = 1021122242729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021122243641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2876236 + ... + 3211693.

It is an arithmetic number, because the mean of its divisors is an integer number (255282124725).

Almost surely, 2^{1021122243241} is an apocalyptic number.

It is an amenable number.

1021122243241 is a deficient number, since it is larger than the sum of its proper divisors (6255659).

1021122243241 is an equidigital number, since it uses as much as digits as its factorization.

1021122243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255658.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1021122243241 its reverse (1423422211201), we get a palindrome (2444544454442).

The spelling of 1021122243241 in words is "one trillion, twenty-one billion, one hundred twenty-two million, two hundred forty-three thousand, two hundred forty-one".