20002222021247 has 2 divisors, whose sum is σ = 20002222021248. Its totient is φ = 20002222021246.

The previous prime is 20002222021193. The next prime is 20002222021277. The reversal of 20002222021247 is 74212022220002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20002222021247 - 2¹⁶ = 20002221955711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002222021277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001111010623 + 10001111010624.

It is an arithmetic number, because the mean of its divisors is an integer number (10001111010624).

Almost surely, 2^{20002222021247} is an apocalyptic number.

20002222021247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002222021247 is an equidigital number, since it uses as much as digits as its factorization.

20002222021247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 26.

Adding to 20002222021247 its reverse (74212022220002), we get a palindrome (94214244241249).

The spelling of 20002222021247 in words is "twenty trillion, two billion, two hundred twenty-two million, twenty-one thousand, two hundred forty-seven".