1101220212011 has 16 divisors (see below), whose sum is σ = 1144329539040. Its totient is φ = 1058462845440.

The previous prime is 1101220211999. The next prime is 1101220212073. The reversal of 1101220212011 is 1102120221011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101220212011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101220212311) 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, 6413795 + ... + 6583251.

It is an arithmetic number, because the mean of its divisors is an integer number (71520596190).

Almost surely, 2^{1101220212011} is an apocalyptic number.

1101220212011 is a deficient number, since it is larger than the sum of its proper divisors (43109327029).

1101220212011 is a wasteful number, since it uses less digits than its factorization.

1101220212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170494.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1101220212011 its reverse (1102120221011), we get a palindrome (2203340433022).

The spelling of 1101220212011 in words is "one trillion, one hundred one billion, two hundred twenty million, two hundred twelve thousand, eleven".