11211011011204 has 36 divisors (see below), whose sum is σ = 20709888636528. Its totient is φ = 5309535294000.

The previous prime is 11211011011199. The next prime is 11211011011219. The reversal of 11211011011204 is 40211011011211.

It is a happy number.

It is a super-2 number, since 2×11211011011204² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7473099 + ... + 8846989.

It is an arithmetic number, because the mean of its divisors is an integer number (575274684348).

Almost surely, 2^{11211011011204} is an apocalyptic number.

It is an amenable number.

11211011011204 is a deficient number, since it is larger than the sum of its proper divisors (9498877625324).

11211011011204 is a wasteful number, since it uses less digits than its factorization.

11211011011204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379584 (or 1379563 counting only the distinct ones).

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

Adding to 11211011011204 its reverse (40211011011211), we get a palindrome (51422022022415).

The spelling of 11211011011204 in words is "eleven trillion, two hundred eleven billion, eleven million, eleven thousand, two hundred four".