1023133322221 has 4 divisors (see below), whose sum is σ = 1029650095132. Its totient is φ = 1016616549312.

The previous prime is 1023133322171. The next prime is 1023133322249. The reversal of 1023133322221 is 1222233313201.

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 181301382025 + 841831940196 = 425795^2 + 917514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023133322221 - 2³³ = 1014543387629 is a prime.

It is a super-2 number, since 2×1023133322221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023133322021) 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, 3258386220 + ... + 3258386533.

It is an arithmetic number, because the mean of its divisors is an integer number (257412523783).

Almost surely, 2^{1023133322221} is an apocalyptic number.

It is an amenable number.

1023133322221 is a deficient number, since it is larger than the sum of its proper divisors (6516772911).

1023133322221 is an equidigital number, since it uses as much as digits as its factorization.

1023133322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516772910.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1023133322221 its reverse (1222233313201), we get a palindrome (2245366635422).

The spelling of 1023133322221 in words is "one trillion, twenty-three billion, one hundred thirty-three million, three hundred twenty-two thousand, two hundred twenty-one".