11211210320011 has 16 divisors (see below), whose sum is σ = 12599259676416. Its totient is φ = 9898304255136.

The previous prime is 11211210320003. The next prime is 11211210320021. The reversal of 11211210320011 is 11002301211211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11211210320011 - 2³ = 11211210320003 is a prime.

It is a super-2 number, since 2×11211210320011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211210320021) 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, 4312956 + ... + 6404998.

It is an arithmetic number, because the mean of its divisors is an integer number (787453729776).

Almost surely, 2^{11211210320011} is an apocalyptic number.

11211210320011 is a deficient number, since it is larger than the sum of its proper divisors (1388049356405).

11211210320011 is a wasteful number, since it uses less digits than its factorization.

11211210320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110002.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11211210320011 its reverse (11002301211211), we get a palindrome (22213511531222).

The spelling of 11211210320011 in words is "eleven trillion, two hundred eleven billion, two hundred ten million, three hundred twenty thousand, eleven".