1111021011211 has 32 divisors (see below), whose sum is σ = 1192194686592. Its totient is φ = 1033110650880.

The previous prime is 1111021011209. The next prime is 1111021011239. The reversal of 1111021011211 is 1121101201111.

It is a cyclic number.

It is not a de Polignac number, because 1111021011211 - 2¹ = 1111021011209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111021011191 and 1111021011200.

It is not an unprimeable number, because it can be changed into a prime (1111021041211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34324411 + ... + 34356763.

It is an arithmetic number, because the mean of its divisors is an integer number (37256083956).

Almost surely, 2^{1111021011211} is an apocalyptic number.

1111021011211 is a deficient number, since it is larger than the sum of its proper divisors (81173675381).

1111021011211 is a wasteful number, since it uses less digits than its factorization.

1111021011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32743.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111021011211 its reverse (1121101201111), we get a palindrome (2232122212322).

The spelling of 1111021011211 in words is "one trillion, one hundred eleven billion, twenty-one million, eleven thousand, two hundred eleven".