2101021222273 has 2 divisors, whose sum is σ = 2101021222274. Its totient is φ = 2101021222272.

The previous prime is 2101021222241. The next prime is 2101021222361. The reversal of 2101021222273 is 3722221201012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1844522529424 + 256498692849 = 1358132^2 + 506457^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101021222273 - 2⁵ = 2101021222241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101021262273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050510611136 + 1050510611137.

It is an arithmetic number, because the mean of its divisors is an integer number (1050510611137).

Almost surely, 2^{2101021222273} is an apocalyptic number.

It is an amenable number.

2101021222273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101021222273 is an equidigital number, since it uses as much as digits as its factorization.

2101021222273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 2101021222273 its reverse (3722221201012), we get a palindrome (5823242423285).

The spelling of 2101021222273 in words is "two trillion, one hundred one billion, twenty-one million, two hundred twenty-two thousand, two hundred seventy-three".