223212021007 has 2 divisors, whose sum is σ = 223212021008. Its totient is φ = 223212021006.

The previous prime is 223212020959. The next prime is 223212021013. The reversal of 223212021007 is 700120212322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223212021007 is a prime.

It is a super-3 number, since 3×223212021007³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223212027007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111606010503 + 111606010504.

It is an arithmetic number, because the mean of its divisors is an integer number (111606010504).

Almost surely, 2^223212021007 is an apocalyptic number.

223212021007 is a deficient number, since it is larger than the sum of its proper divisors (1).

223212021007 is an equidigital number, since it uses as much as digits as its factorization.

223212021007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 223212021007 its reverse (700120212322), we get a palindrome (923332233329).

The spelling of 223212021007 in words is "two hundred twenty-three billion, two hundred twelve million, twenty-one thousand, seven".