1011011001211 has 2 divisors, whose sum is σ = 1011011001212. Its totient is φ = 1011011001210.

The previous prime is 1011011001101. The next prime is 1011011001227. The reversal of 1011011001211 is 1121001101101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011011001211 - 2²³ = 1011002612603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011011001281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505505500605 + 505505500606.

It is an arithmetic number, because the mean of its divisors is an integer number (505505500606).

Almost surely, 2^{1011011001211} is an apocalyptic number.

1011011001211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011011001211 is an equidigital number, since it uses as much as digits as its factorization.

1011011001211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1011011001211 its reverse (1121001101101), we get a palindrome (2132012102312).

The spelling of 1011011001211 in words is "one trillion, eleven billion, eleven million, one thousand, two hundred eleven".