1223233032021 has 144 divisors (see below), whose sum is σ = 2276630338752. Its totient is φ = 578522165760.

The previous prime is 1223233031989. The next prime is 1223233032059. The reversal of 1223233032021 is 1202303323221.

It is not a de Polignac number, because 1223233032021 - 2⁵ = 1223233031989 is a prime.

It is a super-2 number, since 2×1223233032021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223233031982 and 1223233032000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223233032421) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16843630 + ... + 16916096.

It is an arithmetic number, because the mean of its divisors is an integer number (15809932908).

Almost surely, 2^{1223233032021} is an apocalyptic number.

1223233032021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223233032021 is a deficient number, since it is larger than the sum of its proper divisors (1053397306731).

1223233032021 is a wasteful number, since it uses less digits than its factorization.

1223233032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72592 (or 72574 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1223233032021 its reverse (1202303323221), we get a palindrome (2425536355242).

The spelling of 1223233032021 in words is "one trillion, two hundred twenty-three billion, two hundred thirty-three million, thirty-two thousand, twenty-one".