102121112220227 has 2 divisors, whose sum is σ = 102121112220228. Its totient is φ = 102121112220226.

The previous prime is 102121112220157. The next prime is 102121112220289. The reversal of 102121112220227 is 722022211121201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102121112220227 - 2¹⁴ = 102121112203843 is a prime.

It is a super-2 number, since 2×102121112220227² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121112220196 and 102121112220205.

It is not a weakly prime, because it can be changed into another prime (102121112226227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060556110113 + 51060556110114.

It is an arithmetic number, because the mean of its divisors is an integer number (51060556110114).

Almost surely, 2^{102121112220227} is an apocalyptic number.

102121112220227 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121112220227 is an equidigital number, since it uses as much as digits as its factorization.

102121112220227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 102121112220227 its reverse (722022211121201), we get a palindrome (824143323341428).

The spelling of 102121112220227 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-seven".