223000620021 has 32 divisors (see below), whose sum is σ = 342436423680. Its totient is φ = 143332195248.

The previous prime is 223000619987. The next prime is 223000620023. The reversal of 223000620021 is 120026000322.

223000620021 is a `hidden beast` number, since 2 + 23 + 0 + 0 + 0 + 620 + 0 + 21 = 666.

It is not a de Polignac number, because 223000620021 - 2³⁰ = 221926878197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223000619976 and 223000620003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223000620023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226391 + ... + 1396436.

It is an arithmetic number, because the mean of its divisors is an integer number (10701138240).

Almost surely, 2^223000620021 is an apocalyptic number.

It is an amenable number.

223000620021 is a deficient number, since it is larger than the sum of its proper divisors (119435803659).

223000620021 is a wasteful number, since it uses less digits than its factorization.

223000620021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622950 (or 2622944 counting only the distinct ones).

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

Adding to 223000620021 its reverse (120026000322), we get a palindrome (343026620343).

The spelling of 223000620021 in words is "two hundred twenty-three billion, six hundred twenty thousand, twenty-one".