11211010222111 has 8 divisors (see below), whose sum is σ = 12813771638304. Its totient is φ = 9608545937760.

The previous prime is 11211010222099. The next prime is 11211010222201. The reversal of 11211010222111 is 11122201011211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11211010222111 - 2³⁹ = 10661254408223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211010232111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74202100 + ... + 74353033.

It is an arithmetic number, because the mean of its divisors is an integer number (1601721454788).

Almost surely, 2^{11211010222111} is an apocalyptic number.

11211010222111 is a deficient number, since it is larger than the sum of its proper divisors (1602761416193).

11211010222111 is a wasteful number, since it uses less digits than its factorization.

11211010222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148565921.

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

Adding to 11211010222111 its reverse (11122201011211), we get a palindrome (22333211233322).

The spelling of 11211010222111 in words is "eleven trillion, two hundred eleven billion, ten million, two hundred twenty-two thousand, one hundred eleven".