1000221121147 has 2 divisors, whose sum is σ = 1000221121148. Its totient is φ = 1000221121146.

The previous prime is 1000221121139. The next prime is 1000221121187. The reversal of 1000221121147 is 7411211220001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000221121147 - 2³ = 1000221121139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000221121127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500110560573 + 500110560574.

It is an arithmetic number, because the mean of its divisors is an integer number (500110560574).

Almost surely, 2^{1000221121147} is an apocalyptic number.

1000221121147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000221121147 is an equidigital number, since it uses as much as digits as its factorization.

1000221121147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 1000221121147 its reverse (7411211220001), we get a palindrome (8411432341148).

The spelling of 1000221121147 in words is "one trillion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred forty-seven".