11211022102011 has 4 divisors (see below), whose sum is σ = 14948029469352. Its totient is φ = 7474014734672.

The previous prime is 11211022101977. The next prime is 11211022102039. The reversal of 11211022102011 is 11020122011211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11211022102011 - 2⁶ = 11211022101947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211022102811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868503683666 + ... + 1868503683671.

It is an arithmetic number, because the mean of its divisors is an integer number (3737007367338).

Almost surely, 2^{11211022102011} is an apocalyptic number.

11211022102011 is a deficient number, since it is larger than the sum of its proper divisors (3737007367341).

11211022102011 is an equidigital number, since it uses as much as digits as its factorization.

11211022102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737007367340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11211022102011 its reverse (11020122011211), we get a palindrome (22231144113222).

The spelling of 11211022102011 in words is "eleven trillion, two hundred eleven billion, twenty-two million, one hundred two thousand, eleven".