222121111201207 has 2 divisors, whose sum is σ = 222121111201208. Its totient is φ = 222121111201206.

The previous prime is 222121111201193. The next prime is 222121111201243. The reversal of 222121111201207 is 702102111121222.

It is a happy number.

222121111201207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222121111201207 - 2⁴⁷ = 81383622845879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222121111231207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060555600603 + 111060555600604.

It is an arithmetic number, because the mean of its divisors is an integer number (111060555600604).

Almost surely, 2^{222121111201207} is an apocalyptic number.

222121111201207 is a deficient number, since it is larger than the sum of its proper divisors (1).

222121111201207 is an equidigital number, since it uses as much as digits as its factorization.

222121111201207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 222121111201207 its reverse (702102111121222), we get a palindrome (924223222322429).

The spelling of 222121111201207 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred one thousand, two hundred seven".