2120210021227 has 2 divisors, whose sum is σ = 2120210021228. Its totient is φ = 2120210021226.

The previous prime is 2120210021221. The next prime is 2120210021249. The reversal of 2120210021227 is 7221200120212.

It is an a-pointer prime, because the next prime (2120210021249) can be obtained adding 2120210021227 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120210021227 - 2³ = 2120210021219 is a prime.

It is a super-2 number, since 2×2120210021227² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120210021198 and 2120210021207.

It is not a weakly prime, because it can be changed into another prime (2120210021221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105010613 + 1060105010614.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105010614).

Almost surely, 2^{2120210021227} is an apocalyptic number.

2120210021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120210021227 is an equidigital number, since it uses as much as digits as its factorization.

2120210021227 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 22.

Adding to 2120210021227 its reverse (7221200120212), we get a palindrome (9341410141439).

The spelling of 2120210021227 in words is "two trillion, one hundred twenty billion, two hundred ten million, twenty-one thousand, two hundred twenty-seven".