11021220210111 has 8 divisors (see below), whose sum is σ = 15559369708464. Its totient is φ = 6915275425920.

The previous prime is 11021220210103. The next prime is 11021220210127. The reversal of 11021220210111 is 11101202212011.

It is a happy number.

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

It is not a de Polignac number, because 11021220210111 - 2³ = 11021220210103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021220210151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108051178480 + ... + 108051178581.

It is an arithmetic number, because the mean of its divisors is an integer number (1944921213558).

Almost surely, 2^{11021220210111} is an apocalyptic number.

11021220210111 is a deficient number, since it is larger than the sum of its proper divisors (4538149498353).

11021220210111 is a wasteful number, since it uses less digits than its factorization.

11021220210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216102357081.

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

Adding to 11021220210111 its reverse (11101202212011), we get a palindrome (22122422422122).

The spelling of 11021220210111 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred ten thousand, one hundred eleven".