2002022121247 has 2 divisors, whose sum is σ = 2002022121248. Its totient is φ = 2002022121246.

The previous prime is 2002022121199. The next prime is 2002022121257. The reversal of 2002022121247 is 7421212202002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002022121247 - 2³⁵ = 1967662382879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002022121257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001011060623 + 1001011060624.

It is an arithmetic number, because the mean of its divisors is an integer number (1001011060624).

Almost surely, 2^{2002022121247} is an apocalyptic number.

2002022121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002022121247 is an equidigital number, since it uses as much as digits as its factorization.

2002022121247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 2002022121247 its reverse (7421212202002), we get a palindrome (9423234323249).

The spelling of 2002022121247 in words is "two trillion, two billion, twenty-two million, one hundred twenty-one thousand, two hundred forty-seven".