21220002222007 has 2 divisors, whose sum is σ = 21220002222008. Its totient is φ = 21220002222006.

The previous prime is 21220002221953. The next prime is 21220002222011. The reversal of 21220002222007 is 70022220002212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21220002222007 - 2³¹ = 21217854738359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21220002229007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610001111003 + 10610001111004.

It is an arithmetic number, because the mean of its divisors is an integer number (10610001111004).

Almost surely, 2^{21220002222007} is an apocalyptic number.

21220002222007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220002222007 is an equidigital number, since it uses as much as digits as its factorization.

21220002222007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 22.

Adding to 21220002222007 its reverse (70022220002212), we get a palindrome (91242222224219).

The spelling of 21220002222007 in words is "twenty-one trillion, two hundred twenty billion, two million, two hundred twenty-two thousand, seven".