10002222209977 has 2 divisors, whose sum is σ = 10002222209978. Its totient is φ = 10002222209976.

The previous prime is 10002222209971. The next prime is 10002222210049. The reversal of 10002222209977 is 77990222220001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7118325384361 + 2883896825616 = 2668019^2 + 1698204^2 .

It is a cyclic number.

It is not a de Polignac number, because 10002222209977 - 2¹⁵ = 10002222177209 is a prime.

It is not a weakly prime, because it can be changed into another prime (10002222209971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001111104988 + 5001111104989.

It is an arithmetic number, because the mean of its divisors is an integer number (5001111104989).

Almost surely, 2^{10002222209977} is an apocalyptic number.

It is an amenable number.

10002222209977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002222209977 is an equidigital number, since it uses as much as digits as its factorization.

10002222209977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

Adding to 10002222209977 its reverse (77990222220001), we get a palindrome (87992444429978).

The spelling of 10002222209977 in words is "ten trillion, two billion, two hundred twenty-two million, two hundred nine thousand, nine hundred seventy-seven".