223020030012021 has 36 divisors (see below), whose sum is σ = 356790776902560. Its totient is φ = 134131870844400.

The previous prime is 223020030011969. The next prime is 223020030012047. The reversal of 223020030012021 is 120210030020322.

223020030012021 is a `hidden beast` number, since 2 + 23 + 0 + 200 + 300 + 120 + 21 = 666.

It is not a de Polignac number, because 223020030012021 - 2⁷ = 223020030011893 is a prime.

It is a super-3 number, since 3×223020030012021³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 223020030011985 and 223020030012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223020030012121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 781511601 + ... + 781796918.

It is an arithmetic number, because the mean of its divisors is an integer number (9910854913960).

Almost surely, 2^{223020030012021} is an apocalyptic number.

It is an amenable number.

223020030012021 is a deficient number, since it is larger than the sum of its proper divisors (133770746890539).

223020030012021 is a wasteful number, since it uses less digits than its factorization.

223020030012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563308678 (or 1563308664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 223020030012021 its reverse (120210030020322), we get a palindrome (343230060032343).

The spelling of 223020030012021 in words is "two hundred twenty-three trillion, twenty billion, thirty million, twelve thousand, twenty-one".