1022242223521 has 4 divisors (see below), whose sum is σ = 1043992058112. Its totient is φ = 1000492388932.

The previous prime is 1022242223477. The next prime is 1022242223533. The reversal of 1022242223521 is 1253222422201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022242223521 - 2⁷ = 1022242223393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022242223521.

It is not an unprimeable number, because it can be changed into a prime (1022242223221) 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, 10874917225 + ... + 10874917318.

It is an arithmetic number, because the mean of its divisors is an integer number (260998014528).

Almost surely, 2^{1022242223521} is an apocalyptic number.

It is an amenable number.

1022242223521 is a deficient number, since it is larger than the sum of its proper divisors (21749834591).

1022242223521 is an equidigital number, since it uses as much as digits as its factorization.

1022242223521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21749834590.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 1022242223521 its reverse (1253222422201), we get a palindrome (2275464645722).

The spelling of 1022242223521 in words is "one trillion, twenty-two billion, two hundred forty-two million, two hundred twenty-three thousand, five hundred twenty-one".