221223312120007 has 2 divisors, whose sum is σ = 221223312120008. Its totient is φ = 221223312120006.

The previous prime is 221223312119989. The next prime is 221223312120011. The reversal of 221223312120007 is 700021213322122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221223312120007 - 2⁴³ = 212427219097799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221223312129007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611656060003 + 110611656060004.

It is an arithmetic number, because the mean of its divisors is an integer number (110611656060004).

Almost surely, 2^{221223312120007} is an apocalyptic number.

221223312120007 is a deficient number, since it is larger than the sum of its proper divisors (1).

221223312120007 is an equidigital number, since it uses as much as digits as its factorization.

221223312120007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 221223312120007 its reverse (700021213322122), we get a palindrome (921244525442129).

The spelling of 221223312120007 in words is "two hundred twenty-one trillion, two hundred twenty-three billion, three hundred twelve million, one hundred twenty thousand, seven".