1023442221 has 16 divisors (see below), whose sum is σ = 1375395840. Its totient is φ = 676913520.

The previous prime is 1023442193. The next prime is 1023442253. The reversal of 1023442221 is 1222443201.

1023442221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1023442221 - 2²¹ = 1021345069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023442271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205600 + ... + 210518.

It is an arithmetic number, because the mean of its divisors is an integer number (85962240).

Almost surely, 2^1023442221 is an apocalyptic number.

It is an amenable number.

1023442221 is a deficient number, since it is larger than the sum of its proper divisors (351953619).

1023442221 is a wasteful number, since it uses less digits than its factorization.

1023442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1023442221 is about 31991.2835159829. The cubic root of 1023442221 is about 1007.7537969105.

Adding to 1023442221 its reverse (1222443201), we get a palindrome (2245885422).

The spelling of 1023442221 in words is "one billion, twenty-three million, four hundred forty-two thousand, two hundred twenty-one".