1023221100001 has 4 divisors (see below), whose sum is σ = 1024006382272. Its totient is φ = 1022435817732.

The previous prime is 1023221099993. The next prime is 1023221100101. The reversal of 1023221100001 is 1000011223201.

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 1023221100001 - 2³ = 1023221099993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023221100101) 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, 392639181 + ... + 392641786.

It is an arithmetic number, because the mean of its divisors is an integer number (256001595568).

Almost surely, 2^{1023221100001} is an apocalyptic number.

It is an amenable number.

1023221100001 is a deficient number, since it is larger than the sum of its proper divisors (785282271).

1023221100001 is an equidigital number, since it uses as much as digits as its factorization.

1023221100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785282270.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1023221100001 its reverse (1000011223201), we get a palindrome (2023232323202).

The spelling of 1023221100001 in words is "one trillion, twenty-three billion, two hundred twenty-one million, one hundred thousand, one".