102000021221243 has 2 divisors, whose sum is σ = 102000021221244. Its totient is φ = 102000021221242.

The previous prime is 102000021221183. The next prime is 102000021221249. The reversal of 102000021221243 is 342122120000201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102000021221243 - 2⁶ = 102000021221179 is a prime.

It is not a weakly prime, because it can be changed into another prime (102000021221249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000010610621 + 51000010610622.

It is an arithmetic number, because the mean of its divisors is an integer number (51000010610622).

Almost surely, 2^{102000021221243} is an apocalyptic number.

102000021221243 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000021221243 is an equidigital number, since it uses as much as digits as its factorization.

102000021221243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102000021221243 its reverse (342122120000201), we get a palindrome (444122141221444).

The spelling of 102000021221243 in words is "one hundred two trillion, twenty-one million, two hundred twenty-one thousand, two hundred forty-three".