1011211111019 has 2 divisors, whose sum is σ = 1011211111020. Its totient is φ = 1011211111018.

The previous prime is 1011211110997. The next prime is 1011211111067. The reversal of 1011211111019 is 9101111121101.

It is a happy number.

1011211111019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011211111019 - 2²⁴ = 1011194333803 is a prime.

It is a super-2 number, since 2×1011211111019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1011411111019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505605555509 + 505605555510.

It is an arithmetic number, because the mean of its divisors is an integer number (505605555510).

Almost surely, 2^{1011211111019} is an apocalyptic number.

1011211111019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011211111019 is an equidigital number, since it uses as much as digits as its factorization.

1011211111019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 20.

The spelling of 1011211111019 in words is "one trillion, eleven billion, two hundred eleven million, one hundred eleven thousand, nineteen".