1000012011211 has 2 divisors, whose sum is σ = 1000012011212. Its totient is φ = 1000012011210.

The previous prime is 1000012011209. The next prime is 1000012011281. The reversal of 1000012011211 is 1121102100001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000012011211 - 2¹ = 1000012011209 is a prime.

Together with 1000012011209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1000012011281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500006005605 + 500006005606.

It is an arithmetic number, because the mean of its divisors is an integer number (500006005606).

Almost surely, 2^{1000012011211} is an apocalyptic number.

1000012011211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000012011211 is an equidigital number, since it uses as much as digits as its factorization.

1000012011211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1000012011211 its reverse (1121102100001), we get a palindrome (2121114111212).

The spelling of 1000012011211 in words is "one trillion, twelve million, eleven thousand, two hundred eleven".