1011100212211 has 16 divisors (see below), whose sum is σ = 1052459352000. Its totient is φ = 970185541248.

The previous prime is 1011100212209. The next prime is 1011100212229. The reversal of 1011100212211 is 1122120011101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011100212211 - 2¹ = 1011100212209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011100212191 and 1011100212200.

It is not an unprimeable number, because it can be changed into a prime (1011100212911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819965 + ... + 5025361.

It is an arithmetic number, because the mean of its divisors is an integer number (65778709500).

Almost surely, 2^{1011100212211} is an apocalyptic number.

1011100212211 is a deficient number, since it is larger than the sum of its proper divisors (41359139789).

1011100212211 is a wasteful number, since it uses less digits than its factorization.

1011100212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206478.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011100212211 its reverse (1122120011101), we get a palindrome (2133220223312).

The spelling of 1011100212211 in words is "one trillion, eleven billion, one hundred million, two hundred twelve thousand, two hundred eleven".