222000021221243 has 2 divisors, whose sum is σ = 222000021221244. Its totient is φ = 222000021221242.

The previous prime is 222000021221201. The next prime is 222000021221263. The reversal of 222000021221243 is 342122120000222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222000021221243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (222000021221263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000010610621 + 111000010610622.

It is an arithmetic number, because the mean of its divisors is an integer number (111000010610622).

Almost surely, 2^{222000021221243} is an apocalyptic number.

222000021221243 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000021221243 is an equidigital number, since it uses as much as digits as its factorization.

222000021221243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 222000021221243 its reverse (342122120000222), we get a palindrome (564122141221465).

The spelling of 222000021221243 in words is "two hundred twenty-two trillion, twenty-one million, two hundred twenty-one thousand, two hundred forty-three".