102111212021227 has 2 divisors, whose sum is σ = 102111212021228. Its totient is φ = 102111212021226.

The previous prime is 102111212021201. The next prime is 102111212021237. The reversal of 102111212021227 is 722120212111201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102111212021227 - 2¹⁵ = 102111211988459 is a prime.

It is not a weakly prime, because it can be changed into another prime (102111212021237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055606010613 + 51055606010614.

It is an arithmetic number, because the mean of its divisors is an integer number (51055606010614).

Almost surely, 2^{102111212021227} is an apocalyptic number.

102111212021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111212021227 is an equidigital number, since it uses as much as digits as its factorization.

102111212021227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 102111212021227 its reverse (722120212111201), we get a palindrome (824231424132428).

The spelling of 102111212021227 in words is "one hundred two trillion, one hundred eleven billion, two hundred twelve million, twenty-one thousand, two hundred twenty-seven".